DBGCEmulateCodeView.cpp@ 35650

Last change on this file since 35650 was 35628, checked in by vboxsync, 14 years ago
Debugger Console: Clean up, split the command evaluation code out of DBGConsole.cpp and into DBGCEval.cpp.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 183.9 KB

Line
1	/* $Id: DBGCEmulateCodeView.cpp 35628 2011-01-19 14:58:26Z vboxsync $ */
2	/** @file
3	* DBGC - Debugger Console, CodeView / WinDbg Emulation.
4	*/
5
6	/*
7	* Copyright (C) 2006-2011 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/*******************************************************************************
19	* Header Files *
20	*******************************************************************************/
21	#define LOG_GROUP LOG_GROUP_DBGC
22	#include <VBox/dbg.h>
23	#include <VBox/vmm/dbgf.h>
24	#include <VBox/vmm/pgm.h>
25	#include <VBox/vmm/cpum.h>
26	#include <VBox/dis.h>
27	#include <VBox/param.h>
28	#include <VBox/err.h>
29	#include <VBox/log.h>
30
31	#include <iprt/asm.h>
32	#include <iprt/mem.h>
33	#include <iprt/string.h>
34	#include <iprt/assert.h>
35	#include <iprt/ctype.h>
36
37	#include <stdlib.h>
38	#include <stdio.h>
39
40	#include "DBGCInternal.h"
41
42
43	/*******************************************************************************
44	* Internal Functions *
45	*******************************************************************************/
46	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
47	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
48	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
49	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
50	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
51	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
52	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
53	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
54	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
55	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
56	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
57	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
58	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
59	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
60	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
61	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
62	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
63	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
64	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
65	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
66	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
67	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
68	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
69	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
70	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
71	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
72	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
73	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
74	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
75	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
76	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
77
78
79	/*******************************************************************************
80	* Global Variables *
81	*******************************************************************************/
82	/** 'ba' arguments. */
83	static const DBGCVARDESC g_aArgBrkAcc[] =
84	{
85	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
86	{ 1, 1, DBGCVAR_CAT_STRING, 0, "access", "The access type: x=execute, rw=read/write (alias r), w=write, i=not implemented." },
87	{ 1, 1, DBGCVAR_CAT_NUMBER, 0, "size", "The access size: 1, 2, 4, or 8. 'x' access requires 1, and 8 requires amd64 long mode." },
88	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
89	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
90	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
91	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
92	};
93
94
95	/** 'bc', 'bd', 'be' arguments. */
96	static const DBGCVARDESC g_aArgBrks[] =
97	{
98	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
99	{ 0, ~0, DBGCVAR_CAT_NUMBER, 0, "#bp", "Breakpoint number." },
100	{ 0, 1, DBGCVAR_CAT_STRING, 0, "all", "All breakpoints." },
101	};
102
103
104	/** 'bp' arguments. */
105	static const DBGCVARDESC g_aArgBrkSet[] =
106	{
107	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
108	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
109	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
110	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
111	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
112	};
113
114
115	/** 'br' arguments. */
116	static const DBGCVARDESC g_aArgBrkREM[] =
117	{
118	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
119	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "The address." },
120	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "passes", "The number of passes before we trigger the breakpoint. (0 is default)" },
121	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "max passes", "The number of passes after which we stop triggering the breakpoint. (~0 is default)" },
122	{ 0, 1, DBGCVAR_CAT_STRING, 0, "cmds", "String of commands to be executed when the breakpoint is hit. Quote it!" },
123	};
124
125
126	/** 'd?' arguments. */
127	static const DBGCVARDESC g_aArgDumpMem[] =
128	{
129	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
130	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start dumping memory." },
131	};
132
133
134	/** 'dg', 'dga', 'dl', 'dla' arguments. */
135	static const DBGCVARDESC g_aArgDumpDT[] =
136	{
137	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
138	{ 0, ~0, DBGCVAR_CAT_NUMBER, 0, "sel", "Selector or selector range." },
139	{ 0, ~0, DBGCVAR_CAT_POINTER, 0, "address", "Far address which selector should be dumped." },
140	};
141
142
143	/** 'di', 'dia' arguments. */
144	static const DBGCVARDESC g_aArgDumpIDT[] =
145	{
146	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
147	{ 0, ~0, DBGCVAR_CAT_NUMBER, 0, "int", "The interrupt vector or interrupt vector range." },
148	};
149
150
151	/** 'dpd' arguments. /
152	static const DBGCVARDESC g_aArgDumpPD[] =
153	{
154	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
155	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "index", "Index into the page directory." },
156	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from. Range is applied to the page directory." },
157	};
158
159
160	/** 'dpda' arguments. */
161	static const DBGCVARDESC g_aArgDumpPDAddr[] =
162	{
163	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
164	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page directory entry to start dumping from." },
165	};
166
167
168	/** 'dph' arguments. /
169	static const DBGCVARDESC g_aArgDumpPH[] =
170	{
171	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
172	{ 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "address", "Where in the address space to start dumping and for how long (range). The default address/range will be used if omitted." },
173	{ 0, 1, DBGCVAR_CAT_NUMBER, DBGCVD_FLAGS_DEP_PREV, "cr3", "The CR3 value to use. The current CR3 of the context will be used if omitted." },
174	{ 0, 1, DBGCVAR_CAT_STRING, DBGCVD_FLAGS_DEP_PREV, "mode", "The paging mode: legacy, pse, pae, long, ept. Append '-np' for nested paging and '-nx' for no-execute. The current mode will be used if omitted." },
175	};
176
177
178	/** 'dpt?' arguments. */
179	static const DBGCVARDESC g_aArgDumpPT[] =
180	{
181	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
182	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address which page directory entry to start dumping from." },
183	};
184
185
186	/** 'dpta' arguments. */
187	static const DBGCVARDESC g_aArgDumpPTAddr[] =
188	{
189	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
190	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address of the page table entry to start dumping from." },
191	};
192
193
194	/** 'dt' arguments. */
195	static const DBGCVARDESC g_aArgDumpTSS[] =
196	{
197	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
198	{ 0, 1, DBGCVAR_CAT_NUMBER, 0, "tss", "TSS selector number." },
199	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "tss:ign\|addr", "TSS address. If the selector is a TSS selector, the offset will be ignored." }
200	};
201
202
203	/** 'e?' arguments. */
204	static const DBGCVARDESC g_aArgEditMem[] =
205	{
206	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
207	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to write." },
208	{ 1, ~0, DBGCVAR_CAT_NUMBER, 0, "value", "Value to write." },
209	};
210
211
212	/** 'lm' arguments. */
213	static const DBGCVARDESC g_aArgListMods[] =
214	{
215	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
216	{ 0, ~0, DBGCVAR_CAT_STRING, 0, "module", "Module name." },
217	};
218
219
220	/** 'ln' arguments. */
221	static const DBGCVARDESC g_aArgListNear[] =
222	{
223	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
224	{ 0, ~0, DBGCVAR_CAT_POINTER, 0, "address", "Address of the symbol to look up." },
225	{ 0, ~0, DBGCVAR_CAT_SYMBOL, 0, "symbol", "Symbol to lookup." },
226	};
227
228	/** 'ln' return. */
229	static const DBGCVARDESC g_RetListNear =
230	{
231	1, 1, DBGCVAR_CAT_POINTER, 0, "address", "The last resolved symbol/address with adjusted range."
232	};
233
234
235	/** 'ls' arguments. */
236	static const DBGCVARDESC g_aArgListSource[] =
237	{
238	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
239	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start looking for source lines." },
240	};
241
242
243	/** 'm' argument. */
244	static const DBGCVARDESC g_aArgMemoryInfo[] =
245	{
246	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
247	{ 1, 1, DBGCVAR_CAT_POINTER, 0, "address", "Pointer to obtain info about." },
248	};
249
250
251	/** 'r' arguments. */
252	static const DBGCVARDESC g_aArgReg[] =
253	{
254	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
255	{ 0, 1, DBGCVAR_CAT_SYMBOL, 0, "register", "Register to show or set." },
256	{ 0, 1, DBGCVAR_CAT_NUMBER_NO_RANGE, DBGCVD_FLAGS_DEP_PREV, "value", "New register value." },
257	};
258
259
260	/** 's' arguments. */
261	static const DBGCVARDESC g_aArgSearchMem[] =
262	{
263	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
264	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-b", "Byte string." },
265	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-w", "Word string." },
266	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-d", "DWord string." },
267	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-q", "QWord string." },
268	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-a", "ASCII string." },
269	{ 0, 1, DBGCVAR_CAT_OPTION, 0, "-u", "Unicode string." },
270	{ 0, 1, DBGCVAR_CAT_OPTION_NUMBER, 0, "-n <Hits>", "Maximum number of hits." },
271	{ 0, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
272	{ 0, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
273	};
274
275
276	/** 's?' arguments. */
277	static const DBGCVARDESC g_aArgSearchMemType[] =
278	{
279	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
280	{ 1, 1, DBGCVAR_CAT_GC_POINTER, 0, "range", "Register to show or set." },
281	{ 1, ~0, DBGCVAR_CAT_ANY, 0, "pattern", "Pattern to search for." },
282	};
283
284
285	/** 'u' arguments. */
286	static const DBGCVARDESC g_aArgUnassemble[] =
287	{
288	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
289	{ 0, 1, DBGCVAR_CAT_POINTER, 0, "address", "Address where to start disassembling." },
290	};
291
292
293	/** Command descriptors for the CodeView / WinDbg emulation.
294	* The emulation isn't attempting to be identical, only somewhat similar.
295	*/
296	const DBGCCMD g_aCmdsCodeView[] =
297	{
298	/* pszCmd, cArgsMin, cArgsMax, paArgDescs, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
299	{ "ba", 3, 6, &g_aArgBrkAcc[0], RT_ELEMENTS(g_aArgBrkAcc), NULL, 0, dbgcCmdBrkAccess, "<access> <size> <address> [passes [max passes]] [cmds]",
300	"Sets a data access breakpoint." },
301	{ "bc", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkClear, "all \| <bp#> [bp# []]", "Enabled a set of breakpoints." },
302	{ "bd", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkDisable, "all \| <bp#> [bp# []]", "Disables a set of breakpoints." },
303	{ "be", 1, ~0, &g_aArgBrks[0], RT_ELEMENTS(g_aArgBrks), NULL, 0, dbgcCmdBrkEnable, "all \| <bp#> [bp# []]", "Enabled a set of breakpoints." },
304	{ "bl", 0, 0, NULL, 0, NULL, 0, dbgcCmdBrkList, "", "Lists all the breakpoints." },
305	{ "bp", 1, 4, &g_aArgBrkSet[0], RT_ELEMENTS(g_aArgBrkSet), NULL, 0, dbgcCmdBrkSet, "<address> [passes [max passes]] [cmds]",
306	"Sets a breakpoint (int 3)." },
307	{ "br", 1, 4, &g_aArgBrkREM[0], RT_ELEMENTS(g_aArgBrkREM), NULL, 0, dbgcCmdBrkREM, "<address> [passes [max passes]] [cmds]",
308	"Sets a recompiler specific breakpoint." },
309	{ "d", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory using last element size." },
310	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
311	{ "db", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in bytes." },
312	{ "dd", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in double words." },
313	{ "da", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory as ascii string." },
314	{ "dg", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT)." },
315	{ "dga", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the global descriptor table (GDT) including not-present entries." },
316	{ "di", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), NULL, 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT)." },
317	{ "dia", 0, ~0, &g_aArgDumpIDT[0], RT_ELEMENTS(g_aArgDumpIDT), NULL, 0, dbgcCmdDumpIDT, "[int [..]]", "Dump the interrupt descriptor table (IDT) including not-present entries." },
318	{ "dl", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT)." },
319	{ "dla", 0, ~0, &g_aArgDumpDT[0], RT_ELEMENTS(g_aArgDumpDT), NULL, 0, dbgcCmdDumpDT, "[sel [..]]", "Dump the local descriptor table (LDT) including not-present entries." },
320	{ "dpd", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the default context." },
321	{ "dpda", 0, 1, &g_aArgDumpPDAddr[0],RT_ELEMENTS(g_aArgDumpPDAddr),NULL, 0, dbgcCmdDumpPageDir, "[addr]", "Dumps specified page directory." },
322	{ "dpdb", 1, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDirBoth, "[addr] [index]", "Dumps page directory entries of the guest and the hypervisor. " },
323	{ "dpdg", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the guest." },
324	{ "dpdh", 0, 1, &g_aArgDumpPD[0], RT_ELEMENTS(g_aArgDumpPD), NULL, 0, dbgcCmdDumpPageDir, "[addr] [index]", "Dumps page directory entries of the hypervisor. " },
325	{ "dph", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), NULL, 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Default context." },
326	{ "dphg", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), NULL, 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Guest context." },
327	{ "dphh", 0, 3, &g_aArgDumpPH[0], RT_ELEMENTS(g_aArgDumpPH), NULL, 0, dbgcCmdDumpPageHierarchy, "[addr [cr3 [mode]]", "Dumps the paging hierarchy at for specfied address range. Hypervisor context." },
328	{ "dpt", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the default context." },
329	{ "dpta", 1, 1, &g_aArgDumpPTAddr[0],RT_ELEMENTS(g_aArgDumpPTAddr), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps specified page table." },
330	{ "dptb", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTableBoth,"<addr>", "Dumps page table entries of the guest and the hypervisor." },
331	{ "dptg", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the guest." },
332	{ "dpth", 1, 1, &g_aArgDumpPT[0], RT_ELEMENTS(g_aArgDumpPT), NULL, 0, dbgcCmdDumpPageTable,"<addr>", "Dumps page table entries of the hypervisor." },
333	{ "dq", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in quad words." },
334	{ "dt", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the task state segment (TSS)." },
335	{ "dt16", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 16-bit task state segment (TSS)." },
336	{ "dt32", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 32-bit task state segment (TSS)." },
337	{ "dt64", 0, 1, &g_aArgDumpTSS[0], RT_ELEMENTS(g_aArgDumpTSS), NULL, 0, dbgcCmdDumpTSS, "[tss\|tss:ign\|addr]", "Dump the 64-bit task state segment (TSS)." },
338	{ "dw", 0, 1, &g_aArgDumpMem[0], RT_ELEMENTS(g_aArgDumpMem), NULL, 0, dbgcCmdDumpMem, "[addr]", "Dump memory in words." },
339	/** @todo add 'e', 'ea str', 'eza str', 'eu str' and 'ezu str'. See also
340	* dbgcCmdSearchMem and its dbgcVarsToBytes usage. */
341	{ "eb", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 1-byte value to memory." },
342	{ "ew", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 2-byte value to memory." },
343	{ "ed", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 4-byte value to memory." },
344	{ "eq", 2, 2, &g_aArgEditMem[0], RT_ELEMENTS(g_aArgEditMem), NULL, 0, dbgcCmdEditMem, "<addr> <value>", "Write a 8-byte value to memory." },
345	{ "g", 0, 0, NULL, 0, NULL, 0, dbgcCmdGo, "", "Continue execution." },
346	{ "k", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack." },
347	{ "kg", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack - guest." },
348	{ "kh", 0, 0, NULL, 0, NULL, 0, dbgcCmdStack, "", "Callstack - hypervisor." },
349	{ "lm", 0, ~0, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), NULL, 0, dbgcCmdListModules, "[module [..]]", "List modules." },
350	{ "lmo", 0, ~0, &g_aArgListMods[0], RT_ELEMENTS(g_aArgListMods), NULL, 0, dbgcCmdListModules, "[module [..]]", "List modules and their segments." },
351	{ "ln", 0, ~0, &g_aArgListNear[0], RT_ELEMENTS(g_aArgListNear), &g_RetListNear, 0, dbgcCmdListNear, "[addr/sym [..]]", "List symbols near to the address. Default address is CS:EIP." },
352	{ "ls", 0, 1, &g_aArgListSource[0],RT_ELEMENTS(g_aArgListSource),NULL, 0, dbgcCmdListSource, "[addr]", "Source." },
353	{ "m", 1, 1, &g_aArgMemoryInfo[0],RT_ELEMENTS(g_aArgMemoryInfo),NULL, 0, dbgcCmdMemoryInfo, "<addr>", "Display information about that piece of memory." },
354	{ "r", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdReg, "[reg [newval]]", "Show or set register(s) - active reg set." },
355	{ "rg", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdRegGuest, "[reg [newval]]", "Show or set register(s) - guest reg set." },
356	{ "rg32", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegGuest, "", "Show 32-bit guest registers." },
357	{ "rg64", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegGuest, "", "Show 64-bit guest registers." },
358	{ "rh", 0, 2, &g_aArgReg[0], RT_ELEMENTS(g_aArgReg), NULL, 0, dbgcCmdRegHyper, "[reg [newval]]", "Show or set register(s) - hypervisor reg set." },
359	{ "rt", 0, 0, NULL, 0, NULL, 0, dbgcCmdRegTerse, "", "Toggles terse / verbose register info." },
360	{ "s", 0, ~0, &g_aArgSearchMem[0], RT_ELEMENTS(g_aArgSearchMem), NULL, 0, dbgcCmdSearchMem, "[options] <range> <pattern>", "Continue last search." },
361	{ "sa", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an ascii string." },
362	{ "sb", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more bytes." },
363	{ "sd", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more double words." },
364	{ "sq", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more quad words." },
365	{ "su", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for an unicode string." },
366	{ "sw", 2, ~0, &g_aArgSearchMemType[0], RT_ELEMENTS(g_aArgSearchMemType), NULL, 0, dbgcCmdSearchMemType, "<range> <pattern>", "Search memory for one or more words." },
367	{ "t", 0, 0, NULL, 0, NULL, 0, dbgcCmdTrace, "", "Instruction trace (step into)." },
368	{ "u", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble." },
369	{ "u64", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 64-bit code." },
370	{ "u32", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 32-bit code." },
371	{ "u16", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code." },
372	{ "uv86", 0, 1, &g_aArgUnassemble[0],RT_ELEMENTS(g_aArgUnassemble),NULL, 0, dbgcCmdUnassemble, "[addr]", "Unassemble 16-bit code with v8086/real mode addressing." },
373	};
374
375	/** The number of commands in the CodeView/WinDbg emulation. */
376	const unsigned g_cCmdsCodeView = RT_ELEMENTS(g_aCmdsCodeView);
377
378
379
380	/**
381	* The 'go' command.
382	*
383	* @returns VBox status.
384	* @param pCmd Pointer to the command descriptor (as registered).
385	* @param pCmdHlp Pointer to command helper functions.
386	* @param pVM Pointer to the current VM (if any).
387	* @param paArgs Pointer to (readonly) array of arguments.
388	* @param cArgs Number of arguments in the array.
389	*/
390	static DECLCALLBACK(int) dbgcCmdGo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
391	{
392	/*
393	* Check if the VM is halted or not before trying to resume it.
394	*/
395	if (!DBGFR3IsHalted(pVM))
396	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "warning: The VM is already running...\n");
397	else
398	{
399	int rc = DBGFR3Resume(pVM);
400	if (RT_FAILURE(rc))
401	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Executing DBGFR3Resume().");
402	}
403
404	NOREF(pCmd);
405	NOREF(paArgs);
406	NOREF(cArgs);
407	NOREF(pResult);
408	return 0;
409	}
410
411
412	/**
413	* The 'ba' command.
414	*
415	* @returns VBox status.
416	* @param pCmd Pointer to the command descriptor (as registered).
417	* @param pCmdHlp Pointer to command helper functions.
418	* @param pVM Pointer to the current VM (if any).
419	* @param paArgs Pointer to (readonly) array of arguments.
420	* @param cArgs Number of arguments in the array.
421	*/
422	static DECLCALLBACK(int) dbgcCmdBrkAccess(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
423	{
424	/*
425	* Interpret access type.
426	*/
427	if ( !strchr("xrwi", paArgs[0].u.pszString[0])
428	\|\| paArgs[0].u.pszString[1])
429	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid access type '%s' for '%s'. Valid types are 'e', 'r', 'w' and 'i'.\n",
430	paArgs[0].u.pszString, pCmd->pszCmd);
431	uint8_t fType = 0;
432	switch (paArgs[0].u.pszString[0])
433	{
434	case 'x': fType = X86_DR7_RW_EO; break;
435	case 'r': fType = X86_DR7_RW_RW; break;
436	case 'w': fType = X86_DR7_RW_WO; break;
437	case 'i': fType = X86_DR7_RW_IO; break;
438	}
439
440	/*
441	* Validate size.
442	*/
443	if (fType == X86_DR7_RW_EO && paArgs[1].u.u64Number != 1)
444	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid access size %RX64 for '%s'. 'x' access type requires size 1!\n",
445	paArgs[1].u.u64Number, pCmd->pszCmd);
446	switch (paArgs[1].u.u64Number)
447	{
448	case 1:
449	case 2:
450	case 4:
451	break;
452	/case 8: - later/
453	default:
454	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid access size %RX64 for '%s'. 1, 2 or 4!\n",
455	paArgs[1].u.u64Number, pCmd->pszCmd);
456	}
457	uint8_t cb = (uint8_t)paArgs[1].u.u64Number;
458
459	/*
460	* Convert the pointer to a DBGF address.
461	*/
462	DBGFADDRESS Address;
463	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, &paArgs[2], &Address);
464	if (RT_FAILURE(rc))
465	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Couldn't convert '%DV' to a DBGF address, rc=%Rrc.\n", &paArgs[2], rc);
466
467	/*
468	* Pick out the optional arguments.
469	*/
470	uint64_t iHitTrigger = 0;
471	uint64_t iHitDisable = ~0;
472	const char *pszCmds = NULL;
473	unsigned iArg = 3;
474	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
475	{
476	iHitTrigger = paArgs[iArg].u.u64Number;
477	iArg++;
478	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
479	{
480	iHitDisable = paArgs[iArg].u.u64Number;
481	iArg++;
482	}
483	}
484	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
485	{
486	pszCmds = paArgs[iArg].u.pszString;
487	iArg++;
488	}
489
490	/*
491	* Try set the breakpoint.
492	*/
493	RTUINT iBp;
494	rc = DBGFR3BpSetReg(pVM, &Address, iHitTrigger, iHitDisable, fType, cb, &iBp);
495	if (RT_SUCCESS(rc))
496	{
497	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
498	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
499	if (RT_SUCCESS(rc))
500	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Set access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
501	if (rc == VERR_DBGC_BP_EXISTS)
502	{
503	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
504	if (RT_SUCCESS(rc))
505	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Updated access breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
506	}
507	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
508	AssertRC(rc2);
509	}
510	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Failed to set access breakpoint at %RGv, rc=%Rrc.\n", Address.FlatPtr, rc);
511	}
512
513
514	/**
515	* The 'bc' command.
516	*
517	* @returns VBox status.
518	* @param pCmd Pointer to the command descriptor (as registered).
519	* @param pCmdHlp Pointer to command helper functions.
520	* @param pVM Pointer to the current VM (if any).
521	* @param paArgs Pointer to (readonly) array of arguments.
522	* @param cArgs Number of arguments in the array.
523	*/
524	static DECLCALLBACK(int) dbgcCmdBrkClear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
525	{
526	/*
527	* Enumerate the arguments.
528	*/
529	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
530	int rc = VINF_SUCCESS;
531	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
532	{
533	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
534	{
535	/* one */
536	RTUINT iBp = (RTUINT)paArgs[iArg].u.u64Number;
537	if (iBp != paArgs[iArg].u.u64Number)
538	{
539	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Breakpoint id %RX64 is too large!\n", paArgs[iArg].u.u64Number);
540	break;
541	}
542	int rc2 = DBGFR3BpClear(pVM, iBp);
543	if (RT_FAILURE(rc2))
544	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc2, "DBGFR3BpClear failed for breakpoint %u!\n", iBp);
545	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
546	dbgcBpDelete(pDbgc, iBp);
547	}
548	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
549	{
550	/* all */
551	PDBGCBP pBp = pDbgc->pFirstBp;
552	while (pBp)
553	{
554	RTUINT iBp = pBp->iBp;
555	pBp = pBp->pNext;
556
557	int rc2 = DBGFR3BpClear(pVM, iBp);
558	if (RT_FAILURE(rc2))
559	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc2, "DBGFR3BpClear failed for breakpoint %u!\n", iBp);
560	if (RT_SUCCESS(rc2) \|\| rc2 == VERR_DBGF_BP_NOT_FOUND)
561	dbgcBpDelete(pDbgc, iBp);
562	}
563	}
564	else
565	{
566	/* invalid parameter */
567	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid argument '%s' to '%s'!\n", paArgs[iArg].u.pszString, pCmd->pszCmd);
568	break;
569	}
570	}
571	return rc;
572	}
573
574
575	/**
576	* The 'bd' command.
577	*
578	* @returns VBox status.
579	* @param pCmd Pointer to the command descriptor (as registered).
580	* @param pCmdHlp Pointer to command helper functions.
581	* @param pVM Pointer to the current VM (if any).
582	* @param paArgs Pointer to (readonly) array of arguments.
583	* @param cArgs Number of arguments in the array.
584	*/
585	static DECLCALLBACK(int) dbgcCmdBrkDisable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
586	{
587	/*
588	* Enumerate the arguments.
589	*/
590	int rc = VINF_SUCCESS;
591	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
592	{
593	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
594	{
595	/* one */
596	RTUINT iBp = (RTUINT)paArgs[iArg].u.u64Number;
597	if (iBp != paArgs[iArg].u.u64Number)
598	{
599	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Breakpoint id %RX64 is too large!\n", paArgs[iArg].u.u64Number);
600	break;
601	}
602	rc = DBGFR3BpDisable(pVM, iBp);
603	if (RT_FAILURE(rc))
604	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpDisable failed for breakpoint %u!\n", iBp);
605	}
606	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
607	{
608	/* all */
609	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
610	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
611	{
612	rc = DBGFR3BpDisable(pVM, pBp->iBp);
613	if (RT_FAILURE(rc))
614	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpDisable failed for breakpoint %u!\n", pBp->iBp);
615	}
616	}
617	else
618	{
619	/* invalid parameter */
620	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid argument '%s' to '%s'!\n", paArgs[iArg].u.pszString, pCmd->pszCmd);
621	break;
622	}
623	}
624	return rc;
625	}
626
627
628	/**
629	* The 'be' command.
630	*
631	* @returns VBox status.
632	* @param pCmd Pointer to the command descriptor (as registered).
633	* @param pCmdHlp Pointer to command helper functions.
634	* @param pVM Pointer to the current VM (if any).
635	* @param paArgs Pointer to (readonly) array of arguments.
636	* @param cArgs Number of arguments in the array.
637	*/
638	static DECLCALLBACK(int) dbgcCmdBrkEnable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
639	{
640	/*
641	* Enumerate the arguments.
642	*/
643	int rc = VINF_SUCCESS;
644	for (unsigned iArg = 0; iArg < cArgs && RT_SUCCESS(rc); iArg++)
645	{
646	if (paArgs[iArg].enmType != DBGCVAR_TYPE_STRING)
647	{
648	/* one */
649	RTUINT iBp = (RTUINT)paArgs[iArg].u.u64Number;
650	if (iBp != paArgs[iArg].u.u64Number)
651	{
652	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Breakpoint id %RX64 is too large!\n", paArgs[iArg].u.u64Number);
653	break;
654	}
655	rc = DBGFR3BpEnable(pVM, iBp);
656	if (RT_FAILURE(rc))
657	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpEnable failed for breakpoint %u!\n", iBp);
658	}
659	else if (!strcmp(paArgs[iArg].u.pszString, "all"))
660	{
661	/* all */
662	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
663	for (PDBGCBP pBp = pDbgc->pFirstBp; pBp; pBp = pBp->pNext)
664	{
665	rc = DBGFR3BpEnable(pVM, pBp->iBp);
666	if (RT_FAILURE(rc))
667	rc = pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpEnable failed for breakpoint %u!\n", pBp->iBp);
668	}
669	}
670	else
671	{
672	/* invalid parameter */
673	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid argument '%s' to '%s'!\n", paArgs[iArg].u.pszString, pCmd->pszCmd);
674	break;
675	}
676	}
677	return rc;
678	}
679
680
681	/**
682	* Breakpoint enumeration callback function.
683	*
684	* @returns VBox status code. Any failure will stop the enumeration.
685	* @param pVM The VM handle.
686	* @param pvUser The user argument.
687	* @param pBp Pointer to the breakpoint information. (readonly)
688	*/
689	static DECLCALLBACK(int) dbgcEnumBreakpointsCallback(PVM pVM, void *pvUser, PCDBGFBP pBp)
690	{
691	PDBGC pDbgc = (PDBGC)pvUser;
692	PDBGCBP pDbgcBp = dbgcBpGet(pDbgc, pBp->iBp);
693
694	/*
695	* BP type and size.
696	*/
697	char chType;
698	char cb = 1;
699	switch (pBp->enmType)
700	{
701	case DBGFBPTYPE_INT3:
702	chType = 'p';
703	break;
704	case DBGFBPTYPE_REG:
705	switch (pBp->u.Reg.fType)
706	{
707	case X86_DR7_RW_EO: chType = 'x'; break;
708	case X86_DR7_RW_WO: chType = 'w'; break;
709	case X86_DR7_RW_IO: chType = 'i'; break;
710	case X86_DR7_RW_RW: chType = 'r'; break;
711	default: chType = '?'; break;
712
713	}
714	cb = pBp->u.Reg.cb;
715	break;
716	case DBGFBPTYPE_REM:
717	chType = 'r';
718	break;
719	default:
720	chType = '?';
721	break;
722	}
723
724	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%2u %c %d %c %RGv %04RX64 (%04RX64 to ",
725	pBp->iBp, pBp->fEnabled ? 'e' : 'd', cb, chType,
726	pBp->GCPtr, pBp->cHits, pBp->iHitTrigger);
727	if (pBp->iHitDisable == ~(uint64_t)0)
728	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "~0) ");
729	else
730	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%04RX64)");
731
732	/*
733	* Try resolve the address.
734	*/
735	RTDBGSYMBOL Sym;
736	RTINTPTR off;
737	DBGFADDRESS Addr;
738	int rc = DBGFR3AsSymbolByAddr(pVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pVM, &Addr, pBp->GCPtr), &off, &Sym, NULL);
739	if (RT_SUCCESS(rc))
740	{
741	if (!off)
742	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s", Sym.szName);
743	else if (off > 0)
744	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s+%RGv", Sym.szName, off);
745	else
746	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "%s+%RGv", Sym.szName, -off);
747	}
748
749	/*
750	* The commands.
751	*/
752	if (pDbgcBp)
753	{
754	if (pDbgcBp->cchCmd)
755	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\n cmds: '%s'\n",
756	pDbgcBp->szCmd);
757	else
758	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\n");
759	}
760	else
761	pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, " [unknown bp]\n");
762
763	return VINF_SUCCESS;
764	}
765
766
767	/**
768	* The 'bl' command.
769	*
770	* @returns VBox status.
771	* @param pCmd Pointer to the command descriptor (as registered).
772	* @param pCmdHlp Pointer to command helper functions.
773	* @param pVM Pointer to the current VM (if any).
774	* @param paArgs Pointer to (readonly) array of arguments.
775	* @param cArgs Number of arguments in the array.
776	*/
777	static DECLCALLBACK(int) dbgcCmdBrkList(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR /paArgs/, unsigned /cArgs/, PDBGCVAR /pResult/)
778	{
779	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
780
781	/*
782	* Enumerate the breakpoints.
783	*/
784	int rc = DBGFR3BpEnum(pVM, dbgcEnumBreakpointsCallback, pDbgc);
785	if (RT_FAILURE(rc))
786	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3BpEnum failed.\n");
787	return rc;
788	}
789
790
791	/**
792	* The 'bp' command.
793	*
794	* @returns VBox status.
795	* @param pCmd Pointer to the command descriptor (as registered).
796	* @param pCmdHlp Pointer to command helper functions.
797	* @param pVM Pointer to the current VM (if any).
798	* @param paArgs Pointer to (readonly) array of arguments.
799	* @param cArgs Number of arguments in the array.
800	*/
801	static DECLCALLBACK(int) dbgcCmdBrkSet(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
802	{
803	/*
804	* Convert the pointer to a DBGF address.
805	*/
806	DBGFADDRESS Address;
807	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
808	if (RT_FAILURE(rc))
809	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Couldn't convert '%DV' to a DBGF address, rc=%Rrc.\n", &paArgs[0], rc);
810
811	/*
812	* Pick out the optional arguments.
813	*/
814	uint64_t iHitTrigger = 0;
815	uint64_t iHitDisable = ~0;
816	const char *pszCmds = NULL;
817	unsigned iArg = 1;
818	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
819	{
820	iHitTrigger = paArgs[iArg].u.u64Number;
821	iArg++;
822	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
823	{
824	iHitDisable = paArgs[iArg].u.u64Number;
825	iArg++;
826	}
827	}
828	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
829	{
830	pszCmds = paArgs[iArg].u.pszString;
831	iArg++;
832	}
833
834	/*
835	* Try set the breakpoint.
836	*/
837	RTUINT iBp;
838	rc = DBGFR3BpSet(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
839	if (RT_SUCCESS(rc))
840	{
841	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
842	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
843	if (RT_SUCCESS(rc))
844	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Set breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
845	if (rc == VERR_DBGC_BP_EXISTS)
846	{
847	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
848	if (RT_SUCCESS(rc))
849	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Updated breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
850	}
851	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
852	AssertRC(rc2);
853	}
854	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Failed to set breakpoint at %RGv, rc=%Rrc.\n", Address.FlatPtr, rc);
855	}
856
857
858	/**
859	* The 'br' command.
860	*
861	* @returns VBox status.
862	* @param pCmd Pointer to the command descriptor (as registered).
863	* @param pCmdHlp Pointer to command helper functions.
864	* @param pVM Pointer to the current VM (if any).
865	* @param paArgs Pointer to (readonly) array of arguments.
866	* @param cArgs Number of arguments in the array.
867	*/
868	static DECLCALLBACK(int) dbgcCmdBrkREM(PCDBGCCMD /pCmd/, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
869	{
870	/*
871	* Convert the pointer to a DBGF address.
872	*/
873	DBGFADDRESS Address;
874	int rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, &paArgs[0], &Address);
875	if (RT_FAILURE(rc))
876	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Couldn't convert '%DV' to a DBGF address, rc=%Rrc.\n", &paArgs[0], rc);
877
878	/*
879	* Pick out the optional arguments.
880	*/
881	uint64_t iHitTrigger = 0;
882	uint64_t iHitDisable = ~0;
883	const char *pszCmds = NULL;
884	unsigned iArg = 1;
885	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
886	{
887	iHitTrigger = paArgs[iArg].u.u64Number;
888	iArg++;
889	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_NUMBER)
890	{
891	iHitDisable = paArgs[iArg].u.u64Number;
892	iArg++;
893	}
894	}
895	if (iArg < cArgs && paArgs[iArg].enmType == DBGCVAR_TYPE_STRING)
896	{
897	pszCmds = paArgs[iArg].u.pszString;
898	iArg++;
899	}
900
901	/*
902	* Try set the breakpoint.
903	*/
904	RTUINT iBp;
905	rc = DBGFR3BpSetREM(pVM, &Address, iHitTrigger, iHitDisable, &iBp);
906	if (RT_SUCCESS(rc))
907	{
908	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
909	rc = dbgcBpAdd(pDbgc, iBp, pszCmds);
910	if (RT_SUCCESS(rc))
911	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Set REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
912	if (rc == VERR_DBGC_BP_EXISTS)
913	{
914	rc = dbgcBpUpdate(pDbgc, iBp, pszCmds);
915	if (RT_SUCCESS(rc))
916	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Updated REM breakpoint %u at %RGv\n", iBp, Address.FlatPtr);
917	}
918	int rc2 = DBGFR3BpClear(pDbgc->pVM, iBp);
919	AssertRC(rc2);
920	}
921	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Failed to set REM breakpoint at %RGv, rc=%Rrc.\n", Address.FlatPtr, rc);
922	}
923
924
925	/**
926	* The 'u' command.
927	*
928	* @returns VBox status.
929	* @param pCmd Pointer to the command descriptor (as registered).
930	* @param pCmdHlp Pointer to command helper functions.
931	* @param pVM Pointer to the current VM (if any).
932	* @param paArgs Pointer to (readonly) array of arguments.
933	* @param cArgs Number of arguments in the array.
934	*/
935	static DECLCALLBACK(int) dbgcCmdUnassemble(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
936	{
937	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
938
939	/*
940	* Validate input.
941	*/
942	if ( cArgs > 1
943	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
944	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
945	if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
946	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
947	if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
948	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
949
950	unsigned fFlags = DBGF_DISAS_FLAGS_NO_ADDRESS;
951
952	/*
953	* Check the desired mode.
954	*/
955	switch (pCmd->pszCmd[1])
956	{
957	default: AssertFailed();
958	case '\0': fFlags \|= DBGF_DISAS_FLAGS_DEFAULT_MODE; break;
959	case '6': fFlags \|= DBGF_DISAS_FLAGS_64BIT_MODE; break;
960	case '3': fFlags \|= DBGF_DISAS_FLAGS_32BIT_MODE; break;
961	case '1': fFlags \|= DBGF_DISAS_FLAGS_16BIT_MODE; break;
962	case 'v': fFlags \|= DBGF_DISAS_FLAGS_16BIT_REAL_MODE; break;
963	}
964
965	/*
966	* Find address.
967	*/
968	if (!cArgs)
969	{
970	if (!DBGCVAR_ISPOINTER(pDbgc->DisasmPos.enmType))
971	{
972	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
973	if ( pDbgc->fRegCtxGuest
974	&& CPUMIsGuestIn64BitCodeEx(CPUMQueryGuestCtxPtr(pVCpu)))
975	{
976	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FLAT;
977	pDbgc->SourcePos.u.GCFlat = CPUMGetGuestRIP(pVCpu);
978	}
979	else
980	{
981	pDbgc->DisasmPos.enmType = DBGCVAR_TYPE_GC_FAR;
982	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
983	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
984	}
985
986	if (pDbgc->fRegCtxGuest)
987	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_GUEST;
988	else
989	fFlags \|= DBGF_DISAS_FLAGS_CURRENT_HYPER;
990	}
991	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_NONE;
992	}
993	else
994	pDbgc->DisasmPos = paArgs[0];
995	pDbgc->pLastPos = &pDbgc->DisasmPos;
996
997	/*
998	* Range.
999	*/
1000	switch (pDbgc->DisasmPos.enmRangeType)
1001	{
1002	case DBGCVAR_RANGE_NONE:
1003	pDbgc->DisasmPos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1004	pDbgc->DisasmPos.u64Range = 10;
1005	break;
1006
1007	case DBGCVAR_RANGE_ELEMENTS:
1008	if (pDbgc->DisasmPos.u64Range > 2048)
1009	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1010	break;
1011
1012	case DBGCVAR_RANGE_BYTES:
1013	if (pDbgc->DisasmPos.u64Range > 65536)
1014	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1015	break;
1016
1017	default:
1018	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DisasmPos.enmRangeType);
1019	}
1020
1021	/*
1022	* Convert physical and host addresses to guest addresses.
1023	*/
1024	int rc;
1025	switch (pDbgc->DisasmPos.enmType)
1026	{
1027	case DBGCVAR_TYPE_GC_FLAT:
1028	case DBGCVAR_TYPE_GC_FAR:
1029	break;
1030	case DBGCVAR_TYPE_GC_PHYS:
1031	case DBGCVAR_TYPE_HC_FLAT:
1032	case DBGCVAR_TYPE_HC_PHYS:
1033	{
1034	DBGCVAR VarTmp;
1035	rc = DBGCCmdHlpEval(pCmdHlp, &VarTmp, "%%(%Dv)", &pDbgc->DisasmPos);
1036	if (RT_FAILURE(rc))
1037	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: failed to evaluate '%%(%Dv)' -> %Rrc .\n", &pDbgc->DisasmPos, rc);
1038	pDbgc->DisasmPos = VarTmp;
1039	break;
1040	}
1041	default: AssertFailed(); break;
1042	}
1043
1044	/*
1045	* Print address.
1046	* todo: Change to list near.
1047	*/
1048	#if 0
1049	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DisasmPos);
1050	if (RT_FAILURE(rc))
1051	return rc;
1052	#endif
1053
1054	/*
1055	* Do the disassembling.
1056	*/
1057	unsigned cTries = 32;
1058	int iRangeLeft = (int)pDbgc->DisasmPos.u64Range;
1059	if (iRangeLeft == 0) /* kludge for 'r'. */
1060	iRangeLeft = -1;
1061	for (;;)
1062	{
1063	/*
1064	* Disassemble the instruction.
1065	*/
1066	char szDis[256];
1067	uint32_t cbInstr = 1;
1068	if (pDbgc->DisasmPos.enmType == DBGCVAR_TYPE_GC_FLAT)
1069	rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, DBGF_SEL_FLAT, pDbgc->DisasmPos.u.GCFlat, fFlags,
1070	&szDis[0], sizeof(szDis), &cbInstr);
1071	else
1072	rc = DBGFR3DisasInstrEx(pVM, pDbgc->idCpu, pDbgc->DisasmPos.u.GCFar.sel, pDbgc->DisasmPos.u.GCFar.off, fFlags,
1073	&szDis[0], sizeof(szDis), &cbInstr);
1074	if (RT_SUCCESS(rc))
1075	{
1076	/* print it */
1077	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%-16DV %s\n", &pDbgc->DisasmPos, &szDis[0]);
1078	if (RT_FAILURE(rc))
1079	return rc;
1080	}
1081	else
1082	{
1083	/* bitch. */
1084	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to disassemble instruction, skipping one byte.\n");
1085	if (RT_FAILURE(rc))
1086	return rc;
1087	if (cTries-- > 0)
1088	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Too many disassembly failures. Giving up.\n");
1089	cbInstr = 1;
1090	}
1091
1092	/* advance */
1093	if (iRangeLeft < 0) /* 'r' */
1094	break;
1095	if (pDbgc->DisasmPos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1096	iRangeLeft--;
1097	else
1098	iRangeLeft -= cbInstr;
1099	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DisasmPos, "(%Dv) + %x", &pDbgc->DisasmPos, cbInstr);
1100	if (RT_FAILURE(rc))
1101	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DisasmPos, cbInstr);
1102	if (iRangeLeft <= 0)
1103	break;
1104	fFlags &= ~(DBGF_DISAS_FLAGS_CURRENT_GUEST \| DBGF_DISAS_FLAGS_CURRENT_HYPER);
1105	}
1106
1107	NOREF(pCmd); NOREF(pResult);
1108	return 0;
1109	}
1110
1111
1112	/**
1113	* The 'ls' command.
1114	*
1115	* @returns VBox status.
1116	* @param pCmd Pointer to the command descriptor (as registered).
1117	* @param pCmdHlp Pointer to command helper functions.
1118	* @param pVM Pointer to the current VM (if any).
1119	* @param paArgs Pointer to (readonly) array of arguments.
1120	* @param cArgs Number of arguments in the array.
1121	*/
1122	static DECLCALLBACK(int) dbgcCmdListSource(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1123	{
1124	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1125
1126	/*
1127	* Validate input.
1128	*/
1129	if ( cArgs > 1
1130	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
1131	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
1132	if (!pVM && !cArgs && !DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1133	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Don't know where to start disassembling...\n");
1134	if (!pVM && cArgs && DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
1135	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: GC address but no VM.\n");
1136
1137	/*
1138	* Find address.
1139	*/
1140	if (!cArgs)
1141	{
1142	if (!DBGCVAR_ISPOINTER(pDbgc->SourcePos.enmType))
1143	{
1144	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
1145	pDbgc->SourcePos.enmType = DBGCVAR_TYPE_GC_FAR;
1146	pDbgc->SourcePos.u.GCFar.off = pDbgc->fRegCtxGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu);
1147	pDbgc->SourcePos.u.GCFar.sel = pDbgc->fRegCtxGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu);
1148	}
1149	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_NONE;
1150	}
1151	else
1152	pDbgc->SourcePos = paArgs[0];
1153	pDbgc->pLastPos = &pDbgc->SourcePos;
1154
1155	/*
1156	* Ensure the source address is flat GC.
1157	*/
1158	switch (pDbgc->SourcePos.enmType)
1159	{
1160	case DBGCVAR_TYPE_GC_FLAT:
1161	break;
1162	case DBGCVAR_TYPE_GC_PHYS:
1163	case DBGCVAR_TYPE_GC_FAR:
1164	case DBGCVAR_TYPE_HC_FLAT:
1165	case DBGCVAR_TYPE_HC_PHYS:
1166	{
1167	int rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "%%(%Dv)", &pDbgc->SourcePos);
1168	if (RT_FAILURE(rc))
1169	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid address or address type. (rc=%d)\n", rc);
1170	break;
1171	}
1172	default: AssertFailed(); break;
1173	}
1174
1175	/*
1176	* Range.
1177	*/
1178	switch (pDbgc->SourcePos.enmRangeType)
1179	{
1180	case DBGCVAR_RANGE_NONE:
1181	pDbgc->SourcePos.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
1182	pDbgc->SourcePos.u64Range = 10;
1183	break;
1184
1185	case DBGCVAR_RANGE_ELEMENTS:
1186	if (pDbgc->SourcePos.u64Range > 2048)
1187	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many lines requested. Max is 2048 lines.\n");
1188	break;
1189
1190	case DBGCVAR_RANGE_BYTES:
1191	if (pDbgc->SourcePos.u64Range > 65536)
1192	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
1193	break;
1194
1195	default:
1196	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->SourcePos.enmRangeType);
1197	}
1198
1199	/*
1200	* Do the disassembling.
1201	*/
1202	bool fFirst = 1;
1203	DBGFLINE LinePrev = { 0, 0, "" };
1204	int iRangeLeft = (int)pDbgc->SourcePos.u64Range;
1205	if (iRangeLeft == 0) /* kludge for 'r'. */
1206	iRangeLeft = -1;
1207	for (;;)
1208	{
1209	/*
1210	* Get line info.
1211	*/
1212	DBGFLINE Line;
1213	RTGCINTPTR off;
1214	int rc = DBGFR3LineByAddr(pVM, pDbgc->SourcePos.u.GCFlat, &off, &Line);
1215	if (RT_FAILURE(rc))
1216	return VINF_SUCCESS;
1217
1218	unsigned cLines = 0;
1219	if (memcmp(&Line, &LinePrev, sizeof(Line)))
1220	{
1221	/*
1222	* Print filenamename
1223	*/
1224	if (!fFirst && strcmp(Line.szFilename, LinePrev.szFilename))
1225	fFirst = true;
1226	if (fFirst)
1227	{
1228	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "[%s @ %d]\n", Line.szFilename, Line.uLineNo);
1229	if (RT_FAILURE(rc))
1230	return rc;
1231	}
1232
1233	/*
1234	* Try open the file and read the line.
1235	*/
1236	FILE *phFile = fopen(Line.szFilename, "r");
1237	if (phFile)
1238	{
1239	/* Skip ahead to the desired line. */
1240	char szLine[4096];
1241	unsigned cBefore = fFirst ? RT_MIN(2, Line.uLineNo - 1) : Line.uLineNo - LinePrev.uLineNo - 1;
1242	if (cBefore > 7)
1243	cBefore = 0;
1244	unsigned cLeft = Line.uLineNo - cBefore;
1245	while (cLeft > 0)
1246	{
1247	szLine[0] = '\0';
1248	if (!fgets(szLine, sizeof(szLine), phFile))
1249	break;
1250	cLeft--;
1251	}
1252	if (!cLeft)
1253	{
1254	/* print the before lines */
1255	for (;;)
1256	{
1257	size_t cch = strlen(szLine);
1258	while (cch > 0 && (szLine[cch - 1] == '\r' \|\| szLine[cch - 1] == '\n' \|\| RT_C_IS_SPACE(szLine[cch - 1])) )
1259	szLine[--cch] = '\0';
1260	if (cBefore-- <= 0)
1261	break;
1262
1263	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %4d: %s\n", Line.uLineNo - cBefore - 1, szLine);
1264	szLine[0] = '\0';
1265	fgets(szLine, sizeof(szLine), phFile);
1266	cLines++;
1267	}
1268	/* print the actual line */
1269	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08llx %4d: %s\n", Line.Address, Line.uLineNo, szLine);
1270	}
1271	fclose(phFile);
1272	if (RT_FAILURE(rc))
1273	return rc;
1274	fFirst = false;
1275	}
1276	else
1277	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Warning: couldn't open source file '%s'\n", Line.szFilename);
1278
1279	LinePrev = Line;
1280	}
1281
1282
1283	/*
1284	* Advance
1285	*/
1286	if (iRangeLeft < 0) /* 'r' */
1287	break;
1288	if (pDbgc->SourcePos.enmRangeType == DBGCVAR_RANGE_ELEMENTS)
1289	iRangeLeft -= cLines;
1290	else
1291	iRangeLeft -= 1;
1292	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->SourcePos, "(%Dv) + %x", &pDbgc->SourcePos, 1);
1293	if (RT_FAILURE(rc))
1294	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->SourcePos, 1);
1295	if (iRangeLeft <= 0)
1296	break;
1297	}
1298
1299	NOREF(pCmd); NOREF(pResult);
1300	return 0;
1301	}
1302
1303
1304	/**
1305	* The 'r' command.
1306	*
1307	* @returns VBox status.
1308	* @param pCmd Pointer to the command descriptor (as registered).
1309	* @param pCmdHlp Pointer to command helper functions.
1310	* @param pVM Pointer to the current VM (if any).
1311	* @param paArgs Pointer to (readonly) array of arguments.
1312	* @param cArgs Number of arguments in the array.
1313	*/
1314	static DECLCALLBACK(int) dbgcCmdReg(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1315	{
1316	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1317	if (!pDbgc->fRegCtxGuest)
1318	return dbgcCmdRegHyper(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1319	return dbgcCmdRegGuest(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
1320	}
1321
1322
1323	/**
1324	* Common worker for the dbgcCmdReg*() commands.
1325	*
1326	* @returns VBox status.
1327	* @param pCmd Pointer to the command descriptor (as registered).
1328	* @param pCmdHlp Pointer to command helper functions.
1329	* @param pVM Pointer to the current VM (if any).
1330	* @param paArgs Pointer to (readonly) array of arguments.
1331	* @param cArgs Number of arguments in the array.
1332	* @param pszPrefix The symbol prefix.
1333	*/
1334	static DECLCALLBACK(int) dbgcCmdRegCommon(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs,
1335	PDBGCVAR pResult, const char *pszPrefix)
1336	{
1337	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1338	Assert(cArgs == 1 \|\| cArgs == 2); /* cArgs == 0 is handled by the caller */
1339	if ( paArgs[0].enmType != DBGCVAR_TYPE_STRING
1340	&& paArgs[0].enmType != DBGCVAR_TYPE_SYMBOL)
1341	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. Try drop the '@' or/and quote the register name\n");
1342
1343	/*
1344	* Parse the register name and kind.
1345	*/
1346	const char *pszReg = paArgs[0].u.pszString;
1347	if (*pszReg == '@')
1348	pszReg++;
1349	VMCPUID idCpu = pDbgc->idCpu;
1350	if (*pszPrefix)
1351	idCpu \|= DBGFREG_HYPER_VMCPUID;
1352	if (*pszReg == '.')
1353	{
1354	pszReg++;
1355	idCpu \|= DBGFREG_HYPER_VMCPUID;
1356	}
1357	const char * const pszActualPrefix = idCpu & DBGFREG_HYPER_VMCPUID ? "." : "";
1358
1359	/*
1360	* Query the register type & value (the setter needs the type).
1361	*/
1362	DBGFREGVALTYPE enmType;
1363	DBGFREGVAL Value;
1364	int rc = DBGFR3RegNmQuery(pVM, idCpu, pszReg, &Value, &enmType);
1365	if (RT_FAILURE(rc))
1366	{
1367	if (rc == VERR_DBGF_REGISTER_NOT_FOUND)
1368	return DBGCCmdHlpVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "Unknown register: '%s%s'.\n",
1369	pszActualPrefix, pszReg);
1370	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmQuery failed querying '%s%s': %Rrc.\n",
1371	pszActualPrefix, pszReg, rc);
1372	}
1373	if (cArgs == 1)
1374	{
1375	/*
1376	* Show the register.
1377	*/
1378	char szValue[160];
1379	rc = DBGFR3RegFormatValue(szValue, sizeof(szValue), &Value, enmType, true /fSpecial/);
1380	if (RT_SUCCESS(rc))
1381	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s%s=%s\n", pszActualPrefix, pszReg, szValue);
1382	else
1383	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1384	}
1385	else if (cArgs == 2)
1386	{
1387	/*
1388	* Modify the register.
1389	*/
1390	if ( paArgs[1].enmType == DBGCVAR_TYPE_STRING
1391	\|\| paArgs[1].enmType == DBGCVAR_TYPE_SYMBOL)
1392	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly on the 2nd argument yet...\n");
1393	if (enmType != DBGFREGVALTYPE_DTR)
1394	{
1395	enmType = DBGFREGVALTYPE_U64;
1396	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.u64);
1397	}
1398	else
1399	{
1400	enmType = DBGFREGVALTYPE_DTR;
1401	rc = DBGCCmdHlpVarToNumber(pCmdHlp, &paArgs[1], &Value.dtr.u64Base);
1402	if (RT_SUCCESS(rc) && paArgs[1].enmRangeType != DBGCVAR_RANGE_NONE)
1403	Value.dtr.u32Limit = (uint32_t)paArgs[1].u64Range;
1404	}
1405	if (RT_SUCCESS(rc))
1406	{
1407	rc = DBGFR3RegNmSet(pVM, idCpu, pszReg, &Value, enmType);
1408	if (RT_FAILURE(rc))
1409	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegNmSet failed settings '%s%s': %Rrc\n",
1410	pszActualPrefix, pszReg, rc);
1411	}
1412	else
1413	rc = DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegFormatValue failed: %Rrc.\n", rc);
1414	}
1415	else
1416	{
1417	NOREF(pCmd); NOREF(paArgs); NOREF(pResult);
1418	rc = DBGCCmdHlpPrintf(pCmdHlp, "Huh? cArgs=%d Expected 0, 1 or 2!\n", cArgs);
1419	}
1420	return rc;
1421	}
1422
1423
1424	/**
1425	* The 'rg', 'rg64' and 'rg32' commands.
1426	*
1427	* @returns VBox status.
1428	* @param pCmd Pointer to the command descriptor (as registered).
1429	* @param pCmdHlp Pointer to command helper functions.
1430	* @param pVM Pointer to the current VM (if any).
1431	* @param paArgs Pointer to (readonly) array of arguments.
1432	* @param cArgs Number of arguments in the array.
1433	*/
1434	static DECLCALLBACK(int) dbgcCmdRegGuest(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1435	{
1436	/*
1437	* Show all registers our selves.
1438	*/
1439	if (cArgs == 0)
1440	{
1441	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1442	bool const f64BitMode = !strcmp(pCmd->pszCmd, "rg64")
1443	\|\| ( !strcmp(pCmd->pszCmd, "rg32")
1444	&& CPUMIsGuestIn64BitCodeEx(CPUMQueryGuestCtxPtr(VMMGetCpuById(pVM, pDbgc->idCpu))));
1445	char szDisAndRegs[8192];
1446	int rc;
1447
1448	if (pDbgc->fRegTerse)
1449	{
1450	if (f64BitMode)
1451	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1452	"u %016VR{rip} L 0\n"
1453	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1454	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1455	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1456	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1457	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1458	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} rflags=%08VR{rflags}\n");
1459	else
1460	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1461	"u %04VR{cs}:%08VR{eip} L 0\n"
1462	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1463	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1464	"cs=%04VR{cs} ds=%04VR{ds} es=%04VR{es} fs=%04VR{fs} gs=%04VR{gs} ss=%04VR{ss} eflags=%08VR{eflags}\n");
1465	}
1466	else
1467	{
1468	if (f64BitMode)
1469	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, &szDisAndRegs[0], sizeof(szDisAndRegs),
1470	"u %016VR{rip} L 0\n"
1471	"rax=%016VR{rax} rbx=%016VR{rbx} rcx=%016VR{rcx} rdx=%016VR{rdx}\n"
1472	"rsi=%016VR{rsi} rdi=%016VR{rdi} r8 =%016VR{r8} r9 =%016VR{r9}\n"
1473	"r10=%016VR{r10} r11=%016VR{r11} r12=%016VR{r12} r13=%016VR{r13}\n"
1474	"r14=%016VR{r14} r15=%016VR{r15} %VRF{rflags}\n"
1475	"rip=%016VR{rip} rsp=%016VR{rsp} rbp=%016VR{rbp}\n"
1476	"cs={%04VR{cs} base=%016VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} cr0=%016VR{cr0}\n"
1477	"ds={%04VR{ds} base=%016VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} cr2=%016VR{cr2}\n"
1478	"es={%04VR{es} base=%016VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} cr3=%016VR{cr3}\n"
1479	"fs={%04VR{fs} base=%016VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr4=%016VR{cr4}\n"
1480	"gs={%04VR{gs} base=%016VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr8=%016VR{cr8}\n"
1481	"ss={%04VR{ss} base=%016VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1482	"dr0=%016VR{dr0} dr1=%016VR{dr1} dr2=%016VR{dr2} dr3=%016VR{dr3}\n"
1483	"dr6=%016VR{dr6} dr7=%016VR{dr7}\n"
1484	"gdtr=%016VR{gdtr_base}:%04VR{gdtr_lim} idtr=%016VR{idtr_base}:%04VR{idtr_lim} rflags=%08VR{rflags}\n"
1485	"ldtr={%04VR{ldtr} base=%016VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%08VR{ldtr_attr}}\n"
1486	"tr ={%04VR{tr} base=%016VR{tr_base} limit=%08VR{tr_lim} flags=%08VR{tr_attr}}\n"
1487	" sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1488	" efer=%016VR{efer}\n"
1489	" pat=%016VR{pat}\n"
1490	" sf_mask=%016VR{sf_mask}\n"
1491	"krnl_gs_base=%016VR{krnl_gs_base}\n"
1492	" lstar=%016VR{lstar}\n"
1493	" star=%016VR{star} cstar=%016VR{cstar}\n"
1494	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1495	);
1496	else
1497	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu, szDisAndRegs, sizeof(szDisAndRegs),
1498	"u %04VR{cs}:%08VR{eip} L 0\n"
1499	"eax=%08VR{eax} ebx=%08VR{ebx} ecx=%08VR{ecx} edx=%08VR{edx} esi=%08VR{esi} edi=%08VR{edi}\n"
1500	"eip=%08VR{eip} esp=%08VR{esp} ebp=%08VR{ebp} %VRF{eflags}\n"
1501	"cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} dr0=%08VR{dr0} dr1=%08VR{dr1}\n"
1502	"ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} dr2=%08VR{dr2} dr3=%08VR{dr3}\n"
1503	"es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} dr6=%08VR{dr6} dr6=%08VR{dr6}\n"
1504	"fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} cr0=%08VR{cr0} cr2=%08VR{cr0}\n"
1505	"gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}} cr3=%08VR{cr0} cr4=%08VR{cr0}\n"
1506	"ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}} cr8=%08VR{cr8}\n"
1507	"gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} idtr=%08VR{idtr_base}:%04VR{idtr_lim} eflags=%08VR{eflags}\n"
1508	"ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1509	"tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1510	"sysenter={cs=%04VR{sysenter_cs} eip=%08VR{sysenter_eip} esp=%08VR{sysenter_esp}}\n"
1511	"fcw=%04VR{fcw} fsw=%04VR{fsw} ftw=%04VR{ftw} mxcsr=%04VR{mxcsr} mxcsr_mask=%04VR{mxcsr_mask}\n"
1512	);
1513	}
1514	if (RT_FAILURE(rc))
1515	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1516	char *pszRegs = strchr(szDisAndRegs, '\n');
1517	*pszRegs++ = '\0';
1518	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1519
1520	/*
1521	* Disassemble one instruction at cs:[r\|e]ip.
1522	*/
1523	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1524	}
1525	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, "");
1526	}
1527
1528
1529	/**
1530	* The 'rh' command.
1531	*
1532	* @returns VBox status.
1533	* @param pCmd Pointer to the command descriptor (as registered).
1534	* @param pCmdHlp Pointer to command helper functions.
1535	* @param pVM Pointer to the current VM (if any).
1536	* @param paArgs Pointer to (readonly) array of arguments.
1537	* @param cArgs Number of arguments in the array.
1538	*/
1539	static DECLCALLBACK(int) dbgcCmdRegHyper(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1540	{
1541	/*
1542	* Show all registers our selves.
1543	*/
1544	if (cArgs == 0)
1545	{
1546	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1547	char szDisAndRegs[8192];
1548	int rc;
1549
1550	if (pDbgc->fRegTerse)
1551	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1552	"u %VR{cs}:%VR{eip} L 0\n"
1553	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1554	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1555	".cs=%04VR{cs} .ds=%04VR{ds} .es=%04VR{es} .fs=%04VR{fs} .gs=%04VR{gs} .ss=%04VR{ss} .eflags=%08VR{eflags}\n");
1556	else
1557	rc = DBGFR3RegPrintf(pVM, pDbgc->idCpu \| DBGFREG_HYPER_VMCPUID, szDisAndRegs, sizeof(szDisAndRegs),
1558	"u %04VR{cs}:%08VR{eip} L 0\n"
1559	".eax=%08VR{eax} .ebx=%08VR{ebx} .ecx=%08VR{ecx} .edx=%08VR{edx} .esi=%08VR{esi} .edi=%08VR{edi}\n"
1560	".eip=%08VR{eip} .esp=%08VR{esp} .ebp=%08VR{ebp} .%VRF{eflags}\n"
1561	".cs={%04VR{cs} base=%08VR{cs_base} limit=%08VR{cs_lim} flags=%04VR{cs_attr}} .dr0=%08VR{dr0} .dr1=%08VR{dr1}\n"
1562	".ds={%04VR{ds} base=%08VR{ds_base} limit=%08VR{ds_lim} flags=%04VR{ds_attr}} .dr2=%08VR{dr2} .dr3=%08VR{dr3}\n"
1563	".es={%04VR{es} base=%08VR{es_base} limit=%08VR{es_lim} flags=%04VR{es_attr}} .dr6=%08VR{dr6} .dr6=%08VR{dr6}\n"
1564	".fs={%04VR{fs} base=%08VR{fs_base} limit=%08VR{fs_lim} flags=%04VR{fs_attr}} .cr3=%016VR{cr3}\n"
1565	".gs={%04VR{gs} base=%08VR{gs_base} limit=%08VR{gs_lim} flags=%04VR{gs_attr}}\n"
1566	".ss={%04VR{ss} base=%08VR{ss_base} limit=%08VR{ss_lim} flags=%04VR{ss_attr}}\n"
1567	".gdtr=%08VR{gdtr_base}:%04VR{gdtr_lim} .idtr=%08VR{idtr_base}:%04VR{idtr_lim} .eflags=%08VR{eflags}\n"
1568	".ldtr={%04VR{ldtr} base=%08VR{ldtr_base} limit=%08VR{ldtr_lim} flags=%04VR{ldtr_attr}}\n"
1569	".tr ={%04VR{tr} base=%08VR{tr_base} limit=%08VR{tr_lim} flags=%04VR{tr_attr}}\n"
1570	);
1571	if (RT_FAILURE(rc))
1572	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "DBGFR3RegPrintf failed");
1573	char *pszRegs = strchr(szDisAndRegs, '\n');
1574	*pszRegs++ = '\0';
1575	rc = DBGCCmdHlpPrintf(pCmdHlp, "%s", pszRegs);
1576
1577	/*
1578	* Disassemble one instruction at cs:[r\|e]ip.
1579	*/
1580	return pCmdHlp->pfnExec(pCmdHlp, "%s", szDisAndRegs);
1581	}
1582	return dbgcCmdRegCommon(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult, ".");
1583	}
1584
1585
1586	/**
1587	* The 'rt' command.
1588	*
1589	* @returns VBox status.
1590	* @param pCmd Pointer to the command descriptor (as registered).
1591	* @param pCmdHlp Pointer to command helper functions.
1592	* @param pVM Pointer to the current VM (if any).
1593	* @param paArgs Pointer to (readonly) array of arguments.
1594	* @param cArgs Number of arguments in the array.
1595	*/
1596	static DECLCALLBACK(int) dbgcCmdRegTerse(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1597	{
1598	NOREF(pCmd); NOREF(pVM); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1599
1600	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1601	pDbgc->fRegTerse = !pDbgc->fRegTerse;
1602	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, pDbgc->fRegTerse ? "info: Terse register info.\n" : "info: Verbose register info.\n");
1603	}
1604
1605
1606	/**
1607	* The 't' command.
1608	*
1609	* @returns VBox status.
1610	* @param pCmd Pointer to the command descriptor (as registered).
1611	* @param pCmdHlp Pointer to command helper functions.
1612	* @param pVM Pointer to the current VM (if any).
1613	* @param paArgs Pointer to (readonly) array of arguments.
1614	* @param cArgs Number of arguments in the array.
1615	*/
1616	static DECLCALLBACK(int) dbgcCmdTrace(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1617	{
1618	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1619
1620	int rc = DBGFR3Step(pVM, pDbgc->idCpu);
1621	if (RT_SUCCESS(rc))
1622	pDbgc->fReady = false;
1623	else
1624	rc = pDbgc->CmdHlp.pfnVBoxError(&pDbgc->CmdHlp, rc, "When trying to single step VM %p\n", pDbgc->pVM);
1625
1626	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1627	return rc;
1628	}
1629
1630
1631	/**
1632	* The 'k', 'kg' and 'kh' commands.
1633	*
1634	* @returns VBox status.
1635	* @param pCmd Pointer to the command descriptor (as registered).
1636	* @param pCmdHlp Pointer to command helper functions.
1637	* @param pVM Pointer to the current VM (if any).
1638	* @param paArgs Pointer to (readonly) array of arguments.
1639	* @param cArgs Number of arguments in the array.
1640	*/
1641	static DECLCALLBACK(int) dbgcCmdStack(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
1642	{
1643	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
1644
1645	/*
1646	* Figure which context we're called for and start walking that stack.
1647	*/
1648	int rc;
1649	PCDBGFSTACKFRAME pFirstFrame;
1650	bool const fGuest = pCmd->pszCmd[1] == 'g'
1651	\|\| (!pCmd->pszCmd[1] && pDbgc->fRegCtxGuest);
1652	rc = DBGFR3StackWalkBegin(pVM, pDbgc->idCpu, fGuest ? DBGFCODETYPE_GUEST : DBGFCODETYPE_HYPER, &pFirstFrame);
1653	if (RT_FAILURE(rc))
1654	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Failed to begin stack walk, rc=%Rrc\n", rc);
1655
1656	/*
1657	* Print header.
1658	* 12345678 12345678 0023:87654321 12345678 87654321 12345678 87654321 symbol
1659	*/
1660	uint32_t fBitFlags = 0;
1661	for (PCDBGFSTACKFRAME pFrame = pFirstFrame;
1662	pFrame;
1663	pFrame = DBGFR3StackWalkNext(pFrame))
1664	{
1665	uint32_t const fCurBitFlags = pFrame->fFlags & (DBGFSTACKFRAME_FLAGS_16BIT \| DBGFSTACKFRAME_FLAGS_32BIT \| DBGFSTACKFRAME_FLAGS_64BIT);
1666	if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_16BIT)
1667	{
1668	if (fCurBitFlags != fBitFlags)
1669	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "SS:BP Ret SS:BP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1670	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04RX16:%04RX16 %04RX16:%04RX16 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1671	pFrame->AddrFrame.Sel,
1672	(uint16_t)pFrame->AddrFrame.off,
1673	pFrame->AddrReturnFrame.Sel,
1674	(uint16_t)pFrame->AddrReturnFrame.off,
1675	(uint32_t)pFrame->AddrReturnPC.Sel,
1676	(uint32_t)pFrame->AddrReturnPC.off,
1677	pFrame->Args.au32[0],
1678	pFrame->Args.au32[1],
1679	pFrame->Args.au32[2],
1680	pFrame->Args.au32[3]);
1681	}
1682	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_32BIT)
1683	{
1684	if (fCurBitFlags != fBitFlags)
1685	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP / Symbol [line]\n");
1686	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
1687	(uint32_t)pFrame->AddrFrame.off,
1688	(uint32_t)pFrame->AddrReturnFrame.off,
1689	(uint32_t)pFrame->AddrReturnPC.Sel,
1690	(uint32_t)pFrame->AddrReturnPC.off,
1691	pFrame->Args.au32[0],
1692	pFrame->Args.au32[1],
1693	pFrame->Args.au32[2],
1694	pFrame->Args.au32[3]);
1695	}
1696	else if (fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT)
1697	{
1698	if (fCurBitFlags != fBitFlags)
1699	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "RBP Ret SS:RBP Ret RIP CS:RIP / Symbol [line]\n");
1700	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%016RX64 %04RX16:%016RX64 %016RX64",
1701	(uint64_t)pFrame->AddrFrame.off,
1702	pFrame->AddrReturnFrame.Sel,
1703	(uint64_t)pFrame->AddrReturnFrame.off,
1704	(uint64_t)pFrame->AddrReturnPC.off);
1705	}
1706	if (RT_FAILURE(rc))
1707	break;
1708	if (!pFrame->pSymPC)
1709	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
1710	fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1711	? " %RTsel:%016RGv"
1712	: fCurBitFlags & DBGFSTACKFRAME_FLAGS_64BIT
1713	? " %RTsel:%08RGv"
1714	: " %RTsel:%04RGv"
1715	, pFrame->AddrPC.Sel, pFrame->AddrPC.off);
1716	else
1717	{
1718	RTGCINTPTR offDisp = pFrame->AddrPC.FlatPtr - pFrame->pSymPC->Value; /** @todo this isn't 100% correct for segmented stuff. */
1719	if (offDisp > 0)
1720	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s+%llx", pFrame->pSymPC->szName, (int64_t)offDisp);
1721	else if (offDisp < 0)
1722	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s-%llx", pFrame->pSymPC->szName, -(int64_t)offDisp);
1723	else
1724	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " %s", pFrame->pSymPC->szName);
1725	}
1726	if (RT_SUCCESS(rc) && pFrame->pLinePC)
1727	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " [%s @ 0i%d]", pFrame->pLinePC->szFilename, pFrame->pLinePC->uLineNo);
1728	if (RT_SUCCESS(rc))
1729	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
1730	if (RT_FAILURE(rc))
1731	break;
1732
1733	fBitFlags = fCurBitFlags;
1734	}
1735
1736	DBGFR3StackWalkEnd(pFirstFrame);
1737
1738	NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
1739	return rc;
1740	}
1741
1742
1743	static int dbgcCmdDumpDTWorker64(PDBGCCMDHLP pCmdHlp, PCX86DESC64 pDesc, unsigned iEntry, bool fHyper, bool *pfDblEntry)
1744	{
1745	/* GUEST64 */
1746	int rc;
1747
1748	const char *pszHyper = fHyper ? " HYPER" : "";
1749	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1750	if (pDesc->Gen.u1DescType)
1751	{
1752	static const char * const s_apszTypes[] =
1753	{
1754	"DataRO", /* 0 Read-Only */
1755	"DataRO", /* 1 Read-Only - Accessed */
1756	"DataRW", /* 2 Read/Write */
1757	"DataRW", /* 3 Read/Write - Accessed */
1758	"DownRO", /* 4 Expand-down, Read-Only */
1759	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1760	"DownRW", /* 6 Expand-down, Read/Write */
1761	"DownRO", /* 7 Expand-down, Read/Write - Accessed */
1762	"CodeEO", /* 8 Execute-Only */
1763	"CodeEO", /* 9 Execute-Only - Accessed */
1764	"CodeER", /* A Execute/Readable */
1765	"CodeER", /* B Execute/Readable - Accessed */
1766	"ConfE0", /* C Conforming, Execute-Only */
1767	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1768	"ConfER", /* E Conforming, Execute/Readable */
1769	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1770	};
1771	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1772	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1773	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1774	uint32_t u32Base = X86DESC_BASE(*pDesc);
1775	uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1776	if (pDesc->Gen.u1Granularity)
1777	cbLimit <<= PAGE_SHIFT;
1778
1779	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1780	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1781	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1782	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1783	}
1784	else
1785	{
1786	static const char * const s_apszTypes[] =
1787	{
1788	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1789	"Ill-1 ", /* 1 0001 Available 16-bit TSS */
1790	"LDT ", /* 2 0010 LDT */
1791	"Ill-3 ", /* 3 0011 Busy 16-bit TSS */
1792	"Ill-4 ", /* 4 0100 16-bit Call Gate */
1793	"Ill-5 ", /* 5 0101 Task Gate */
1794	"Ill-6 ", /* 6 0110 16-bit Interrupt Gate */
1795	"Ill-7 ", /* 7 0111 16-bit Trap Gate */
1796	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1797	"Tss64A", /* 9 1001 Available 32-bit TSS */
1798	"Ill-A ", /* A 1010 Reserved (Illegal) */
1799	"Tss64B", /* B 1011 Busy 32-bit TSS */
1800	"Call64", /* C 1100 32-bit Call Gate */
1801	"Ill-D ", /* D 1101 Reserved (Illegal) */
1802	"Int64 ", /* E 1110 32-bit Interrupt Gate */
1803	"Trap64" /* F 1111 32-bit Trap Gate */
1804	};
1805	switch (pDesc->Gen.u4Type)
1806	{
1807	/* raw */
1808	case X86_SEL_TYPE_SYS_UNDEFINED:
1809	case X86_SEL_TYPE_SYS_UNDEFINED2:
1810	case X86_SEL_TYPE_SYS_UNDEFINED4:
1811	case X86_SEL_TYPE_SYS_UNDEFINED3:
1812	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1813	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1814	case X86_SEL_TYPE_SYS_286_CALL_GATE:
1815	case X86_SEL_TYPE_SYS_286_INT_GATE:
1816	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
1817	case X86_SEL_TYPE_SYS_TASK_GATE:
1818	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1819	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1820	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1821	break;
1822
1823	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1824	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1825	case X86_SEL_TYPE_SYS_LDT:
1826	{
1827	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1828	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1829	const char *pszLong = pDesc->Gen.u1Long ? "LONG" : " ";
1830
1831	uint64_t u32Base = X86DESC64_BASE(*pDesc);
1832	uint32_t cbLimit = X86DESC_LIMIT(*pDesc);
1833
1834	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%016RX64 Lim=%08x DPL=%d %s %s %s %sAVL=%d R=%d%s\n",
1835	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1836	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszLong, pszBig,
1837	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1838	pszHyper);
1839	if (pfDblEntry)
1840	*pfDblEntry = true;
1841	break;
1842	}
1843
1844	case X86_SEL_TYPE_SYS_386_CALL_GATE:
1845	{
1846	unsigned cParams = pDesc->au8[4] & 0x1f;
1847	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
1848	RTSEL sel = pDesc->au16[1];
1849	uint64_t off = pDesc->au16[0]
1850	\| ((uint64_t)pDesc->au16[3] << 16)
1851	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1852	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s %s=%d%s\n",
1853	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1854	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
1855	if (pfDblEntry)
1856	*pfDblEntry = true;
1857	break;
1858	}
1859
1860	case X86_SEL_TYPE_SYS_386_INT_GATE:
1861	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
1862	{
1863	RTSEL sel = pDesc->au16[1];
1864	uint64_t off = pDesc->au16[0]
1865	\| ((uint64_t)pDesc->au16[3] << 16)
1866	\| ((uint64_t)pDesc->Gen.u32BaseHigh3 << 32);
1867	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%016RX64 DPL=%d %s%s\n",
1868	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
1869	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1870	if (pfDblEntry)
1871	*pfDblEntry = true;
1872	break;
1873	}
1874
1875	/* impossible, just it's necessary to keep gcc happy. */
1876	default:
1877	return VINF_SUCCESS;
1878	}
1879	}
1880	return VINF_SUCCESS;
1881	}
1882
1883
1884	/**
1885	* Worker function that displays one descriptor entry (GDT, LDT, IDT).
1886	*
1887	* @returns pfnPrintf status code.
1888	* @param pCmdHlp The DBGC command helpers.
1889	* @param pDesc The descriptor to display.
1890	* @param iEntry The descriptor entry number.
1891	* @param fHyper Whether the selector belongs to the hypervisor or not.
1892	*/
1893	static int dbgcCmdDumpDTWorker32(PDBGCCMDHLP pCmdHlp, PCX86DESC pDesc, unsigned iEntry, bool fHyper)
1894	{
1895	int rc;
1896
1897	const char *pszHyper = fHyper ? " HYPER" : "";
1898	const char *pszPresent = pDesc->Gen.u1Present ? "P " : "NP";
1899	if (pDesc->Gen.u1DescType)
1900	{
1901	static const char * const s_apszTypes[] =
1902	{
1903	"DataRO", /* 0 Read-Only */
1904	"DataRO", /* 1 Read-Only - Accessed */
1905	"DataRW", /* 2 Read/Write */
1906	"DataRW", /* 3 Read/Write - Accessed */
1907	"DownRO", /* 4 Expand-down, Read-Only */
1908	"DownRO", /* 5 Expand-down, Read-Only - Accessed */
1909	"DownRW", /* 6 Expand-down, Read/Write */
1910	"DownRO", /* 7 Expand-down, Read/Write - Accessed */
1911	"CodeEO", /* 8 Execute-Only */
1912	"CodeEO", /* 9 Execute-Only - Accessed */
1913	"CodeER", /* A Execute/Readable */
1914	"CodeER", /* B Execute/Readable - Accessed */
1915	"ConfE0", /* C Conforming, Execute-Only */
1916	"ConfE0", /* D Conforming, Execute-Only - Accessed */
1917	"ConfER", /* E Conforming, Execute/Readable */
1918	"ConfER" /* F Conforming, Execute/Readable - Accessed */
1919	};
1920	const char *pszAccessed = pDesc->Gen.u4Type & RT_BIT(0) ? "A " : "NA";
1921	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1922	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1923	uint32_t u32Base = pDesc->Gen.u16BaseLow
1924	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1925	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1926	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1927	if (pDesc->Gen.u1Granularity)
1928	cbLimit <<= PAGE_SHIFT;
1929
1930	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d L=%d%s\n",
1931	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1932	pDesc->Gen.u2Dpl, pszPresent, pszAccessed, pszGranularity, pszBig,
1933	pDesc->Gen.u1Available, pDesc->Gen.u1Long, pszHyper);
1934	}
1935	else
1936	{
1937	static const char * const s_apszTypes[] =
1938	{
1939	"Ill-0 ", /* 0 0000 Reserved (Illegal) */
1940	"Tss16A", /* 1 0001 Available 16-bit TSS */
1941	"LDT ", /* 2 0010 LDT */
1942	"Tss16B", /* 3 0011 Busy 16-bit TSS */
1943	"Call16", /* 4 0100 16-bit Call Gate */
1944	"TaskG ", /* 5 0101 Task Gate */
1945	"Int16 ", /* 6 0110 16-bit Interrupt Gate */
1946	"Trap16", /* 7 0111 16-bit Trap Gate */
1947	"Ill-8 ", /* 8 1000 Reserved (Illegal) */
1948	"Tss32A", /* 9 1001 Available 32-bit TSS */
1949	"Ill-A ", /* A 1010 Reserved (Illegal) */
1950	"Tss32B", /* B 1011 Busy 32-bit TSS */
1951	"Call32", /* C 1100 32-bit Call Gate */
1952	"Ill-D ", /* D 1101 Reserved (Illegal) */
1953	"Int32 ", /* E 1110 32-bit Interrupt Gate */
1954	"Trap32" /* F 1111 32-bit Trap Gate */
1955	};
1956	switch (pDesc->Gen.u4Type)
1957	{
1958	/* raw */
1959	case X86_SEL_TYPE_SYS_UNDEFINED:
1960	case X86_SEL_TYPE_SYS_UNDEFINED2:
1961	case X86_SEL_TYPE_SYS_UNDEFINED4:
1962	case X86_SEL_TYPE_SYS_UNDEFINED3:
1963	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s %.8Rhxs DPL=%d %s%s\n",
1964	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc,
1965	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1966	break;
1967
1968	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
1969	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
1970	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
1971	case X86_SEL_TYPE_SYS_386_TSS_BUSY:
1972	case X86_SEL_TYPE_SYS_LDT:
1973	{
1974	const char *pszGranularity = pDesc->Gen.u1Granularity ? "G" : " ";
1975	const char *pszBusy = pDesc->Gen.u4Type & RT_BIT(1) ? "B " : "NB";
1976	const char *pszBig = pDesc->Gen.u1DefBig ? "BIG" : " ";
1977	uint32_t u32Base = pDesc->Gen.u16BaseLow
1978	\| ((uint32_t)pDesc->Gen.u8BaseHigh1 << 16)
1979	\| ((uint32_t)pDesc->Gen.u8BaseHigh2 << 24);
1980	uint32_t cbLimit = pDesc->Gen.u16LimitLow \| (pDesc->Gen.u4LimitHigh << 16);
1981	if (pDesc->Gen.u1Granularity)
1982	cbLimit <<= PAGE_SHIFT;
1983
1984	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Bas=%08x Lim=%08x DPL=%d %s %s %s %s AVL=%d R=%d%s\n",
1985	iEntry, s_apszTypes[pDesc->Gen.u4Type], u32Base, cbLimit,
1986	pDesc->Gen.u2Dpl, pszPresent, pszBusy, pszGranularity, pszBig,
1987	pDesc->Gen.u1Available, pDesc->Gen.u1Long \| (pDesc->Gen.u1DefBig << 1),
1988	pszHyper);
1989	break;
1990	}
1991
1992	case X86_SEL_TYPE_SYS_TASK_GATE:
1993	{
1994	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s TSS=%04x DPL=%d %s%s\n",
1995	iEntry, s_apszTypes[pDesc->Gen.u4Type], pDesc->au16[1],
1996	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
1997	break;
1998	}
1999
2000	case X86_SEL_TYPE_SYS_286_CALL_GATE:
2001	case X86_SEL_TYPE_SYS_386_CALL_GATE:
2002	{
2003	unsigned cParams = pDesc->au8[4] & 0x1f;
2004	const char *pszCountOf = pDesc->Gen.u4Type & RT_BIT(3) ? "DC" : "WC";
2005	RTSEL sel = pDesc->au16[1];
2006	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
2007	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s %s=%d%s\n",
2008	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2009	pDesc->Gen.u2Dpl, pszPresent, pszCountOf, cParams, pszHyper);
2010	break;
2011	}
2012
2013	case X86_SEL_TYPE_SYS_286_INT_GATE:
2014	case X86_SEL_TYPE_SYS_386_INT_GATE:
2015	case X86_SEL_TYPE_SYS_286_TRAP_GATE:
2016	case X86_SEL_TYPE_SYS_386_TRAP_GATE:
2017	{
2018	RTSEL sel = pDesc->au16[1];
2019	uint32_t off = pDesc->au16[0] \| ((uint32_t)pDesc->au16[3] << 16);
2020	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %s Sel:Off=%04x:%08x DPL=%d %s%s\n",
2021	iEntry, s_apszTypes[pDesc->Gen.u4Type], sel, off,
2022	pDesc->Gen.u2Dpl, pszPresent, pszHyper);
2023	break;
2024	}
2025
2026	/* impossible, just it's necessary to keep gcc happy. */
2027	default:
2028	return VINF_SUCCESS;
2029	}
2030	}
2031	return rc;
2032	}
2033
2034
2035	/**
2036	* The 'dg', 'dga', 'dl' and 'dla' commands.
2037	*
2038	* @returns VBox status.
2039	* @param pCmd Pointer to the command descriptor (as registered).
2040	* @param pCmdHlp Pointer to command helper functions.
2041	* @param pVM Pointer to the current VM (if any).
2042	* @param paArgs Pointer to (readonly) array of arguments.
2043	* @param cArgs Number of arguments in the array.
2044	*/
2045	static DECLCALLBACK(int) dbgcCmdDumpDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2046	{
2047	/*
2048	* Validate input.
2049	*/
2050	if (!pVM)
2051	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2052
2053	/*
2054	* Get the CPU mode, check which command variation this is
2055	* and fix a default parameter if needed.
2056	*/
2057	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2058	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2059	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2060	bool fGdt = pCmd->pszCmd[1] == 'g';
2061	bool fAll = pCmd->pszCmd[2] == 'a';
2062	RTSEL SelTable = fGdt ? 0 : X86_SEL_LDT;
2063
2064	DBGCVAR Var;
2065	if (!cArgs)
2066	{
2067	cArgs = 1;
2068	paArgs = &Var;
2069	Var.enmType = DBGCVAR_TYPE_NUMBER;
2070	Var.u.u64Number = 0;
2071	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2072	Var.u64Range = 1024;
2073	}
2074
2075	/*
2076	* Process the arguments.
2077	*/
2078	for (unsigned i = 0; i < cArgs; i++)
2079	{
2080	/*
2081	* Retrieve the selector value from the argument.
2082	* The parser may confuse pointers and numbers if more than one
2083	* argument is given, that that into account.
2084	*/
2085	/* check that what we got makes sense as we don't trust the parser yet. */
2086	if ( paArgs[i].enmType != DBGCVAR_TYPE_NUMBER
2087	&& !DBGCVAR_ISPOINTER(paArgs[i].enmType))
2088	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number or pointer type but %d.\n", i, paArgs[i].enmType);
2089	uint64_t u64;
2090	unsigned cSels = 1;
2091	switch (paArgs[i].enmType)
2092	{
2093	case DBGCVAR_TYPE_NUMBER:
2094	u64 = paArgs[i].u.u64Number;
2095	if (paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE)
2096	cSels = RT_MIN(paArgs[i].u64Range, 1024);
2097	break;
2098	case DBGCVAR_TYPE_GC_FAR: u64 = paArgs[i].u.GCFar.sel; break;
2099	case DBGCVAR_TYPE_GC_FLAT: u64 = paArgs[i].u.GCFlat; break;
2100	case DBGCVAR_TYPE_GC_PHYS: u64 = paArgs[i].u.GCPhys; break;
2101	case DBGCVAR_TYPE_HC_FLAT: u64 = (uintptr_t)paArgs[i].u.pvHCFlat; break;
2102	case DBGCVAR_TYPE_HC_PHYS: u64 = paArgs[i].u.HCPhys; break;
2103	default: u64 = _64K; break;
2104	}
2105	if (u64 < _64K)
2106	{
2107	unsigned Sel = (RTSEL)u64;
2108
2109	/*
2110	* Dump the specified range.
2111	*/
2112	bool fSingle = cSels == 1;
2113	while ( cSels-- > 0
2114	&& Sel < _64K)
2115	{
2116	DBGFSELINFO SelInfo;
2117	int rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, Sel \| SelTable, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
2118	if (RT_SUCCESS(rc))
2119	{
2120	if (SelInfo.fFlags & DBGFSELINFO_FLAGS_REAL_MODE)
2121	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x RealM Bas=%04x Lim=%04x\n",
2122	Sel, (unsigned)SelInfo.GCPtrBase, (unsigned)SelInfo.cbLimit);
2123	else if ( fAll
2124	\|\| fSingle
2125	\|\| SelInfo.u.Raw.Gen.u1Present)
2126	{
2127	if (enmMode == CPUMMODE_PROTECTED)
2128	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &SelInfo.u.Raw, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER));
2129	else
2130	{
2131	bool fDblSkip = false;
2132	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &SelInfo.u.Raw64, Sel, !!(SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER), &fDblSkip);
2133	if (fDblSkip)
2134	Sel += 4;
2135	}
2136	}
2137	}
2138	else
2139	{
2140	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %Rrc\n", Sel, rc);
2141	if (!fAll)
2142	return rc;
2143	}
2144	if (RT_FAILURE(rc))
2145	return rc;
2146
2147	/* next */
2148	Sel += 8;
2149	}
2150	}
2151	else
2152	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds\n", u64);
2153	}
2154
2155	NOREF(pResult);
2156	return VINF_SUCCESS;
2157	}
2158
2159
2160	/**
2161	* The 'di' and 'dia' commands.
2162	*
2163	* @returns VBox status.
2164	* @param pCmd Pointer to the command descriptor (as registered).
2165	* @param pCmdHlp Pointer to command helper functions.
2166	* @param pVM Pointer to the current VM (if any).
2167	* @param paArgs Pointer to (readonly) array of arguments.
2168	* @param cArgs Number of arguments in the array.
2169	*/
2170	static DECLCALLBACK(int) dbgcCmdDumpIDT(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2171	{
2172	/*
2173	* Validate input.
2174	*/
2175	if (!pVM)
2176	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2177
2178	/*
2179	* Establish some stuff like the current IDTR and CPU mode,
2180	* and fix a default parameter.
2181	*/
2182	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2183	PVMCPU pVCpu = VMMGetCpuById(pVM, pDbgc->idCpu);
2184	uint16_t cbLimit;
2185	RTGCUINTPTR GCPtrBase = CPUMGetGuestIDTR(pVCpu, &cbLimit);
2186	CPUMMODE enmMode = CPUMGetGuestMode(pVCpu);
2187	unsigned cbEntry;
2188	switch (enmMode)
2189	{
2190	case CPUMMODE_REAL: cbEntry = sizeof(RTFAR16); break;
2191	case CPUMMODE_PROTECTED: cbEntry = sizeof(X86DESC); break;
2192	case CPUMMODE_LONG: cbEntry = sizeof(X86DESC64); break;
2193	default:
2194	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid CPU mode %d.\n", enmMode);
2195	}
2196
2197	bool fAll = pCmd->pszCmd[2] == 'a';
2198	DBGCVAR Var;
2199	if (!cArgs)
2200	{
2201	cArgs = 1;
2202	paArgs = &Var;
2203	Var.enmType = DBGCVAR_TYPE_NUMBER;
2204	Var.u.u64Number = 0;
2205	Var.enmRangeType = DBGCVAR_RANGE_ELEMENTS;
2206	Var.u64Range = 256;
2207	}
2208
2209	/*
2210	* Process the arguments.
2211	*/
2212	for (unsigned i = 0; i < cArgs; i++)
2213	{
2214	/* check that what we got makes sense as we don't trust the parser yet. */
2215	if (paArgs[i].enmType != DBGCVAR_TYPE_NUMBER)
2216	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: arg #%u isn't of number type but %d.\n", i, paArgs[i].enmType);
2217	if (paArgs[i].u.u64Number < 256)
2218	{
2219	RTGCUINTPTR iInt = (RTGCUINTPTR)paArgs[i].u.u64Number;
2220	unsigned cInts = paArgs[i].enmRangeType != DBGCVAR_RANGE_NONE
2221	? paArgs[i].u64Range
2222	: 1;
2223	bool fSingle = cInts == 1;
2224	while ( cInts-- > 0
2225	&& iInt < 256)
2226	{
2227	/*
2228	* Try read it.
2229	*/
2230	union
2231	{
2232	RTFAR16 Real;
2233	X86DESC Prot;
2234	X86DESC64 Long;
2235	} u;
2236	if (iInt * cbEntry + (cbEntry - 1) > cbLimit)
2237	{
2238	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x not within the IDT\n", (unsigned)iInt);
2239	if (!fAll && !fSingle)
2240	return VINF_SUCCESS;
2241	}
2242	DBGCVAR AddrVar;
2243	AddrVar.enmType = DBGCVAR_TYPE_GC_FLAT;
2244	AddrVar.u.GCFlat = GCPtrBase + iInt * cbEntry;
2245	AddrVar.enmRangeType = DBGCVAR_RANGE_NONE;
2246	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &u, cbEntry, &AddrVar, NULL);
2247	if (RT_FAILURE(rc))
2248	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading IDT entry %#04x.\n", (unsigned)iInt);
2249
2250	/*
2251	* Display it.
2252	*/
2253	switch (enmMode)
2254	{
2255	case CPUMMODE_REAL:
2256	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%04x %RTfp16\n", (unsigned)iInt, u.Real);
2257	/** @todo resolve 16:16 IDTE to a symbol */
2258	break;
2259	case CPUMMODE_PROTECTED:
2260	if (fAll \|\| fSingle \|\| u.Prot.Gen.u1Present)
2261	rc = dbgcCmdDumpDTWorker32(pCmdHlp, &u.Prot, iInt, false);
2262	break;
2263	case CPUMMODE_LONG:
2264	if (fAll \|\| fSingle \|\| u.Long.Gen.u1Present)
2265	rc = dbgcCmdDumpDTWorker64(pCmdHlp, &u.Long, iInt, false, NULL);
2266	break;
2267	default: break; /* to shut up gcc */
2268	}
2269	if (RT_FAILURE(rc))
2270	return rc;
2271
2272	/* next */
2273	iInt++;
2274	}
2275	}
2276	else
2277	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: %llx is out of bounds (max 256)\n", paArgs[i].u.u64Number);
2278	}
2279
2280	NOREF(pResult);
2281	return VINF_SUCCESS;
2282	}
2283
2284
2285	/**
2286	* The 'da', 'dq', 'dd', 'dw' and 'db' commands.
2287	*
2288	* @returns VBox status.
2289	* @param pCmd Pointer to the command descriptor (as registered).
2290	* @param pCmdHlp Pointer to command helper functions.
2291	* @param pVM Pointer to the current VM (if any).
2292	* @param paArgs Pointer to (readonly) array of arguments.
2293	* @param cArgs Number of arguments in the array.
2294	*/
2295	static DECLCALLBACK(int) dbgcCmdDumpMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2296	{
2297	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2298
2299	/*
2300	* Validate input.
2301	*/
2302	if ( cArgs > 1
2303	\|\| (cArgs == 1 && !DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2304	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2305	if (!pVM)
2306	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2307
2308	/*
2309	* Figure out the element size.
2310	*/
2311	unsigned cbElement;
2312	bool fAscii = false;
2313	switch (pCmd->pszCmd[1])
2314	{
2315	default:
2316	case 'b': cbElement = 1; break;
2317	case 'w': cbElement = 2; break;
2318	case 'd': cbElement = 4; break;
2319	case 'q': cbElement = 8; break;
2320	case 'a':
2321	cbElement = 1;
2322	fAscii = true;
2323	break;
2324	case '\0':
2325	fAscii = !!(pDbgc->cbDumpElement & 0x80000000);
2326	cbElement = pDbgc->cbDumpElement & 0x7fffffff;
2327	if (!cbElement)
2328	cbElement = 1;
2329	break;
2330	}
2331
2332	/*
2333	* Find address.
2334	*/
2335	if (!cArgs)
2336	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_NONE;
2337	else
2338	pDbgc->DumpPos = paArgs[0];
2339
2340	/*
2341	* Range.
2342	*/
2343	switch (pDbgc->DumpPos.enmRangeType)
2344	{
2345	case DBGCVAR_RANGE_NONE:
2346	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2347	pDbgc->DumpPos.u64Range = 0x60;
2348	break;
2349
2350	case DBGCVAR_RANGE_ELEMENTS:
2351	if (pDbgc->DumpPos.u64Range > 2048)
2352	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Too many elements requested. Max is 2048 elements.\n");
2353	pDbgc->DumpPos.enmRangeType = DBGCVAR_RANGE_BYTES;
2354	pDbgc->DumpPos.u64Range = (cbElement ? cbElement : 1) * pDbgc->DumpPos.u64Range;
2355	break;
2356
2357	case DBGCVAR_RANGE_BYTES:
2358	if (pDbgc->DumpPos.u64Range > 65536)
2359	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The requested range is too big. Max is 64KB.\n");
2360	break;
2361
2362	default:
2363	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: Unknown range type %d.\n", pDbgc->DumpPos.enmRangeType);
2364	}
2365
2366	pDbgc->pLastPos = &pDbgc->DumpPos;
2367
2368	/*
2369	* Do the dumping.
2370	*/
2371	pDbgc->cbDumpElement = cbElement \| (fAscii << 31);
2372	int cbLeft = (int)pDbgc->DumpPos.u64Range;
2373	uint8_t u8Prev = '\0';
2374	for (;;)
2375	{
2376	/*
2377	* Read memory.
2378	*/
2379	char achBuffer[16];
2380	size_t cbReq = RT_MIN((int)sizeof(achBuffer), cbLeft);
2381	size_t cb = RT_MIN((int)sizeof(achBuffer), cbLeft);
2382	int rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &achBuffer, cbReq, &pDbgc->DumpPos, &cb);
2383	if (RT_FAILURE(rc))
2384	{
2385	if (u8Prev && u8Prev != '\n')
2386	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2387	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading memory at %DV.\n", &pDbgc->DumpPos);
2388	}
2389
2390	/*
2391	* Display it.
2392	*/
2393	memset(&achBuffer[cb], 0, sizeof(achBuffer) - cb);
2394	if (!fAscii)
2395	{
2396	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:", &pDbgc->DumpPos);
2397	unsigned i;
2398	for (i = 0; i < cb; i += cbElement)
2399	{
2400	const char *pszSpace = " ";
2401	if (cbElement <= 2 && i == 8 && !fAscii)
2402	pszSpace = "-";
2403	switch (cbElement)
2404	{
2405	case 1: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%02x", pszSpace, (uint8_t )&achBuffer[i]); break;
2406	case 2: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%04x", pszSpace, (uint16_t )&achBuffer[i]); break;
2407	case 4: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%08x", pszSpace, (uint32_t )&achBuffer[i]); break;
2408	case 8: pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%s%016llx", pszSpace, (uint64_t )&achBuffer[i]); break;
2409	}
2410	}
2411
2412	/* chars column */
2413	if (pDbgc->cbDumpElement == 1)
2414	{
2415	while (i++ < sizeof(achBuffer))
2416	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2417	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " ");
2418	for (i = 0; i < cb; i += cbElement)
2419	{
2420	uint8_t u8 = (uint8_t )&achBuffer[i];
2421	if (RT_C_IS_PRINT(u8) && u8 < 127 && u8 >= 32)
2422	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2423	else
2424	pCmdHlp->pfnPrintf(pCmdHlp, NULL, ".");
2425	}
2426	}
2427	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2428	}
2429	else
2430	{
2431	/*
2432	* We print up to the first zero and stop there.
2433	* Only printables + '\t' and '\n' are printed.
2434	*/
2435	if (!u8Prev)
2436	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV:\n", &pDbgc->DumpPos);
2437	uint8_t u8 = '\0';
2438	unsigned i;
2439	for (i = 0; i < cb; i++)
2440	{
2441	u8Prev = u8;
2442	u8 = (uint8_t )&achBuffer[i];
2443	if ( u8 < 127
2444	&& ( (RT_C_IS_PRINT(u8) && u8 >= 32)
2445	\|\| u8 == '\t'
2446	\|\| u8 == '\n'))
2447	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%c", u8);
2448	else if (!u8)
2449	break;
2450	else
2451	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\\x%x", u8);
2452	}
2453	if (u8 == '\0')
2454	cb = cbLeft = i + 1;
2455	if (cbLeft - cb <= 0 && u8Prev != '\n')
2456	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
2457	}
2458
2459	/*
2460	* Advance
2461	*/
2462	cbLeft -= (int)cb;
2463	rc = DBGCCmdHlpEval(pCmdHlp, &pDbgc->DumpPos, "(%Dv) + %x", &pDbgc->DumpPos, cb);
2464	if (RT_FAILURE(rc))
2465	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Expression: (%Dv) + %x\n", &pDbgc->DumpPos, cb);
2466	if (cbLeft <= 0)
2467	break;
2468	}
2469
2470	NOREF(pCmd); NOREF(pResult);
2471	return VINF_SUCCESS;
2472	}
2473
2474
2475	/**
2476	* Best guess at which paging mode currently applies to the guest
2477	* paging structures.
2478	*
2479	* This have to come up with a decent answer even when the guest
2480	* is in non-paged protected mode or real mode.
2481	*
2482	* @returns cr3.
2483	* @param pDbgc The DBGC instance.
2484	* @param pfPAE Where to store the page address extension indicator.
2485	* @param pfLME Where to store the long mode enabled indicator.
2486	* @param pfPSE Where to store the page size extension indicator.
2487	* @param pfPGE Where to store the page global enabled indicator.
2488	* @param pfNXE Where to store the no-execution enabled indicator.
2489	*/
2490	static RTGCPHYS dbgcGetGuestPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2491	{
2492	PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2493	RTGCUINTREG cr4 = CPUMGetGuestCR4(pVCpu);
2494	*pfPSE = !!(cr4 & X86_CR4_PSE);
2495	*pfPGE = !!(cr4 & X86_CR4_PGE);
2496	if (cr4 & X86_CR4_PAE)
2497	{
2498	*pfPSE = true;
2499	*pfPAE = true;
2500	}
2501	else
2502	*pfPAE = false;
2503
2504	*pfLME = CPUMGetGuestMode(pVCpu) == CPUMMODE_LONG;
2505	pfNXE = false; / GUEST64 GUESTNX */
2506	return CPUMGetGuestCR3(pVCpu);
2507	}
2508
2509
2510	/**
2511	* Determine the shadow paging mode.
2512	*
2513	* @returns cr3.
2514	* @param pDbgc The DBGC instance.
2515	* @param pfPAE Where to store the page address extension indicator.
2516	* @param pfLME Where to store the long mode enabled indicator.
2517	* @param pfPSE Where to store the page size extension indicator.
2518	* @param pfPGE Where to store the page global enabled indicator.
2519	* @param pfNXE Where to store the no-execution enabled indicator.
2520	*/
2521	static RTHCPHYS dbgcGetShadowPageMode(PDBGC pDbgc, bool pfPAE, bool pfLME, bool pfPSE, bool pfPGE, bool *pfNXE)
2522	{
2523	PVMCPU pVCpu = VMMGetCpuById(pDbgc->pVM, pDbgc->idCpu);
2524
2525	*pfPSE = true;
2526	*pfPGE = false;
2527	switch (PGMGetShadowMode(pVCpu))
2528	{
2529	default:
2530	case PGMMODE_32_BIT:
2531	pfPAE = pfLME = *pfNXE = false;
2532	break;
2533	case PGMMODE_PAE:
2534	pfLME = pfNXE = false;
2535	*pfPAE = true;
2536	break;
2537	case PGMMODE_PAE_NX:
2538	*pfLME = false;
2539	pfPAE = pfNXE = true;
2540	break;
2541	case PGMMODE_AMD64:
2542	*pfNXE = false;
2543	pfPAE = pfLME = true;
2544	break;
2545	case PGMMODE_AMD64_NX:
2546	pfPAE = pfLME = *pfNXE = true;
2547	break;
2548	}
2549	return PGMGetHyperCR3(pVCpu);
2550	}
2551
2552
2553	/**
2554	* The 'dpd', 'dpda', 'dpdb', 'dpdg' and 'dpdh' commands.
2555	*
2556	* @returns VBox status.
2557	* @param pCmd Pointer to the command descriptor (as registered).
2558	* @param pCmdHlp Pointer to command helper functions.
2559	* @param pVM Pointer to the current VM (if any).
2560	* @param paArgs Pointer to (readonly) array of arguments.
2561	* @param cArgs Number of arguments in the array.
2562	*/
2563	static DECLCALLBACK(int) dbgcCmdDumpPageDir(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2564	{
2565	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2566
2567	/*
2568	* Validate input.
2569	*/
2570	if ( cArgs > 1
2571	\|\| (cArgs == 1 && pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2572	\|\| (cArgs == 1 && pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2573	)
2574	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2575	if (!pVM)
2576	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2577
2578	/*
2579	* Guest or shadow page directories? Get the paging parameters.
2580	*/
2581	bool fGuest = pCmd->pszCmd[3] != 'h';
2582	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2583	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2584	? pDbgc->fRegCtxGuest
2585	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2586
2587	bool fPAE, fLME, fPSE, fPGE, fNXE;
2588	uint64_t cr3 = fGuest
2589	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
2590	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
2591	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
2592
2593	/*
2594	* Setup default argument if none was specified.
2595	* Fix address / index confusion.
2596	*/
2597	DBGCVAR VarDefault;
2598	if (!cArgs)
2599	{
2600	if (pCmd->pszCmd[3] == 'a')
2601	{
2602	if (fLME \|\| fPAE)
2603	return DBGCCmdHlpPrintf(pCmdHlp, "Default argument for 'dpda' hasn't been fully implemented yet. Try with an address or use one of the other commands.\n");
2604	if (fGuest)
2605	DBGCVAR_INIT_GC_PHYS(&VarDefault, cr3);
2606	else
2607	DBGCVAR_INIT_HC_PHYS(&VarDefault, cr3);
2608	}
2609	else
2610	DBGCVAR_INIT_GC_FLAT(&VarDefault, 0);
2611	paArgs = &VarDefault;
2612	cArgs = 1;
2613	}
2614	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
2615	{
2616	Assert(pCmd->pszCmd[3] != 'a');
2617	VarDefault = paArgs[0];
2618	if (VarDefault.u.u64Number <= 1024)
2619	{
2620	if (fPAE)
2621	return DBGCCmdHlpPrintf(pCmdHlp, "PDE indexing is only implemented for 32-bit paging.\n");
2622	if (VarDefault.u.u64Number >= PAGE_SIZE / cbEntry)
2623	return DBGCCmdHlpPrintf(pCmdHlp, "PDE index is out of range [0..%d].\n", PAGE_SIZE / cbEntry - 1);
2624	VarDefault.u.u64Number <<= X86_PD_SHIFT;
2625	}
2626	VarDefault.enmType = DBGCVAR_TYPE_GC_FLAT;
2627	paArgs = &VarDefault;
2628	}
2629
2630	/*
2631	* Locate the PDE to start displaying at.
2632	*
2633	* The 'dpda' command takes the address of a PDE, while the others are guest
2634	* virtual address which PDEs should be displayed. So, 'dpda' is rather simple
2635	* while the others require us to do all the tedious walking thru the paging
2636	* hierarchy to find the intended PDE.
2637	*/
2638	unsigned iEntry = ~0U; /* The page directory index. ~0U for 'dpta'. */
2639	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PDE (iEntry != ~0U). */
2640	DBGCVAR VarPDEAddr; /* The address of the current PDE. */
2641	unsigned cEntries; /* The number of entries to display. */
2642	unsigned cEntriesMax; /* The max number of entries to display. */
2643	int rc;
2644	if (pCmd->pszCmd[3] == 'a')
2645	{
2646	VarPDEAddr = paArgs[0];
2647	switch (VarPDEAddr.enmRangeType)
2648	{
2649	case DBGCVAR_RANGE_BYTES: cEntries = VarPDEAddr.u64Range / cbEntry; break;
2650	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPDEAddr.u64Range; break;
2651	default: cEntries = 10; break;
2652	}
2653	cEntriesMax = PAGE_SIZE / cbEntry;
2654	}
2655	else
2656	{
2657	/*
2658	* Determine the range.
2659	*/
2660	switch (paArgs[0].enmRangeType)
2661	{
2662	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
2663	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
2664	default: cEntries = 10; break;
2665	}
2666
2667	/*
2668	* Normalize the input address, it must be a flat GC address.
2669	*/
2670	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
2671	if (RT_FAILURE(rc))
2672	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
2673	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
2674	{
2675	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
2676	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
2677	}
2678	if (fPAE)
2679	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_PAE_SHIFT) - 1);
2680	else
2681	VarGCPtr.u.GCFlat &= ~(((RTGCPTR)1 << X86_PD_SHIFT) - 1);
2682
2683	/*
2684	* Do the paging walk until we get to the page directory.
2685	*/
2686	DBGCVAR VarCur;
2687	if (fGuest)
2688	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
2689	else
2690	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
2691	if (fLME)
2692	{
2693	/* Page Map Level 4 Lookup. */
2694	/* Check if it's a valid address first? */
2695	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
2696	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
2697	X86PML4E Pml4e;
2698	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
2699	if (RT_FAILURE(rc))
2700	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
2701	if (!Pml4e.n.u1Present)
2702	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
2703
2704	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
2705	Assert(fPAE);
2706	}
2707	if (fPAE)
2708	{
2709	/* Page directory pointer table. */
2710	X86PDPE Pdpe;
2711	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
2712	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
2713	if (RT_FAILURE(rc))
2714	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
2715	if (!Pdpe.n.u1Present)
2716	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
2717
2718	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2719	VarPDEAddr = VarCur;
2720	VarPDEAddr.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
2721	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDEPAE);
2722	}
2723	else
2724	{
2725	/* 32-bit legacy - CR3 == page directory. */
2726	iEntry = (VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK;
2727	VarPDEAddr = VarCur;
2728	VarPDEAddr.u.u64Number += iEntry * sizeof(X86PDE);
2729	}
2730	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
2731	iEntry /= cbEntry;
2732	}
2733
2734	/* adjust cEntries */
2735	cEntries = RT_MAX(1, cEntries);
2736	cEntries = RT_MIN(cEntries, cEntriesMax);
2737
2738	/*
2739	* The display loop.
2740	*/
2741	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (index %#x):\n" : "%DV:\n",
2742	&VarPDEAddr, iEntry);
2743	do
2744	{
2745	/*
2746	* Read.
2747	*/
2748	X86PDEPAE Pde;
2749	Pde.u = 0;
2750	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, cbEntry, &VarPDEAddr, NULL);
2751	if (RT_FAILURE(rc))
2752	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarPDEAddr);
2753
2754	/*
2755	* Display.
2756	*/
2757	if (iEntry != ~0U)
2758	{
2759	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
2760	iEntry++;
2761	}
2762	if (fPSE && Pde.b.u1Size)
2763	DBGCCmdHlpPrintf(pCmdHlp,
2764	fPAE
2765	? "%016llx big phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
2766	: "%08llx big phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
2767	Pde.u,
2768	Pde.u & X86_PDE_PAE_PG_MASK,
2769	Pde.b.u1Present ? "p " : "np",
2770	Pde.b.u1Write ? "w" : "r",
2771	Pde.b.u1User ? "u" : "s",
2772	Pde.b.u1Accessed ? "a " : "na",
2773	Pde.b.u1Dirty ? "d " : "nd",
2774	Pde.b.u3Available,
2775	Pde.b.u1Global ? (fPGE ? "g" : "G") : " ",
2776	Pde.b.u1WriteThru ? "pwt" : " ",
2777	Pde.b.u1CacheDisable ? "pcd" : " ",
2778	Pde.b.u1PAT ? "pat" : "",
2779	Pde.b.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2780	else
2781	DBGCCmdHlpPrintf(pCmdHlp,
2782	fPAE
2783	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s"
2784	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s",
2785	Pde.u,
2786	Pde.u & X86_PDE_PAE_PG_MASK,
2787	Pde.n.u1Present ? "p " : "np",
2788	Pde.n.u1Write ? "w" : "r",
2789	Pde.n.u1User ? "u" : "s",
2790	Pde.n.u1Accessed ? "a " : "na",
2791	Pde.u & RT_BIT(6) ? "6 " : " ",
2792	Pde.n.u3Available,
2793	Pde.u & RT_BIT(8) ? "8" : " ",
2794	Pde.n.u1WriteThru ? "pwt" : " ",
2795	Pde.n.u1CacheDisable ? "pcd" : " ",
2796	Pde.u & RT_BIT(7) ? "7" : "",
2797	Pde.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " ");
2798	if (Pde.u & UINT64_C(0x7fff000000000000))
2799	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pde.u & UINT64_C(0x7fff000000000000)));
2800	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
2801	if (RT_FAILURE(rc))
2802	return rc;
2803
2804	/*
2805	* Advance.
2806	*/
2807	VarPDEAddr.u.u64Number += cbEntry;
2808	if (iEntry != ~0U)
2809	VarGCPtr.u.GCFlat += fPAE ? RT_BIT_32(X86_PD_PAE_SHIFT) : RT_BIT_32(X86_PD_SHIFT);
2810	} while (cEntries-- > 0);
2811
2812	NOREF(pResult);
2813	return VINF_SUCCESS;
2814	}
2815
2816
2817	/**
2818	* The 'dpdb' command.
2819	*
2820	* @returns VBox status.
2821	* @param pCmd Pointer to the command descriptor (as registered).
2822	* @param pCmdHlp Pointer to command helper functions.
2823	* @param pVM Pointer to the current VM (if any).
2824	* @param paArgs Pointer to (readonly) array of arguments.
2825	* @param cArgs Number of arguments in the array.
2826	*/
2827	static DECLCALLBACK(int) dbgcCmdDumpPageDirBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2828	{
2829	if (!pVM)
2830	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
2831	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dpdg %DV", &paArgs[0]);
2832	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpdh %DV", &paArgs[0]);
2833	if (RT_FAILURE(rc1))
2834	return rc1;
2835	NOREF(pCmd); NOREF(paArgs); NOREF(cArgs); NOREF(pResult);
2836	return rc2;
2837	}
2838
2839
2840	/**
2841	* The 'dph*' commands and main part of 'm'.
2842	*
2843	* @returns VBox status.
2844	* @param pCmd Pointer to the command descriptor (as registered).
2845	* @param pCmdHlp Pointer to command helper functions.
2846	* @param pVM Pointer to the current VM (if any).
2847	* @param paArgs Pointer to (readonly) array of arguments.
2848	* @param cArgs Number of arguments in the array.
2849	*/
2850	static DECLCALLBACK(int) dbgcCmdDumpPageHierarchy(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2851	{
2852	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2853	if (!pVM)
2854	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
2855
2856	/*
2857	* Figure the context and base flags.
2858	*/
2859	uint32_t fFlags = DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_PRINT_CR3;
2860	if (pCmd->pszCmd[0] == 'm')
2861	fFlags \|= DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW;
2862	else if (pCmd->pszCmd[3] == '\0')
2863	fFlags \|= pDbgc->fRegCtxGuest ? DBGFPGDMP_FLAGS_GUEST : DBGFPGDMP_FLAGS_SHADOW;
2864	else if (pCmd->pszCmd[3] == 'g')
2865	fFlags \|= DBGFPGDMP_FLAGS_GUEST;
2866	else if (pCmd->pszCmd[3] == 'h')
2867	fFlags \|= DBGFPGDMP_FLAGS_SHADOW;
2868	else
2869	AssertFailed();
2870
2871	if (pDbgc->cPagingHierarchyDumps == 0)
2872	fFlags \|= DBGFPGDMP_FLAGS_HEADER;
2873	pDbgc->cPagingHierarchyDumps = (pDbgc->cPagingHierarchyDumps + 1) % 42;
2874
2875	/*
2876	* Get the range.
2877	*/
2878	PCDBGCVAR pRange = cArgs > 0 ? &paArgs[0] : pDbgc->pLastPos;
2879	RTGCPTR GCPtrFirst = NIL_RTGCPTR;
2880	int rc = DBGCCmdHlpVarToFlatAddr(pCmdHlp, pRange, &GCPtrFirst);
2881	if (RT_FAILURE(rc))
2882	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to convert %DV to a flat address: %Rrc", pRange, rc);
2883
2884	uint64_t cbRange;
2885	rc = DBGCCmdHlpVarGetRange(pCmdHlp, pRange, PAGE_SIZE, PAGE_SIZE * 8, &cbRange);
2886	if (RT_FAILURE(rc))
2887	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to obtain the range of %DV: %Rrc", pRange, rc);
2888
2889	RTGCPTR GCPtrLast = RTGCPTR_MAX - GCPtrFirst;
2890	if (cbRange >= GCPtrLast)
2891	GCPtrLast = RTGCPTR_MAX;
2892	else if (!cbRange)
2893	GCPtrLast = GCPtrFirst;
2894	else
2895	GCPtrLast = GCPtrFirst + cbRange - 1;
2896
2897	/*
2898	* Do we have a CR3?
2899	*/
2900	uint64_t cr3 = 0;
2901	if (cArgs > 1)
2902	{
2903	if ((fFlags & (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW)) == (DBGFPGDMP_FLAGS_GUEST \| DBGFPGDMP_FLAGS_SHADOW))
2904	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No CR3 or mode arguments when dumping both context, please.");
2905	if (paArgs[1].enmType != DBGCVAR_TYPE_NUMBER)
2906	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The CR3 argument is not a number: %DV", &paArgs[1]);
2907	cr3 = paArgs[1].u.u64Number;
2908	}
2909	else
2910	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_CR3;
2911
2912	/*
2913	* Do we have a mode?
2914	*/
2915	if (cArgs > 2)
2916	{
2917	if (paArgs[2].enmType != DBGCVAR_TYPE_STRING)
2918	return DBGCCmdHlpFail(pCmdHlp, pCmd, "The mode argument is not a string: %DV", &paArgs[2]);
2919	static const struct MODETOFLAGS
2920	{
2921	const char *pszName;
2922	uint32_t fFlags;
2923	} s_aModeToFlags[] =
2924	{
2925	{ "ept", DBGFPGDMP_FLAGS_EPT },
2926	{ "legacy", 0 },
2927	{ "legacy-np", DBGFPGDMP_FLAGS_NP },
2928	{ "pse", DBGFPGDMP_FLAGS_PSE },
2929	{ "pse-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_NP },
2930	{ "pae", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE },
2931	{ "pae-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NP },
2932	{ "pae-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE },
2933	{ "pae-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP },
2934	{ "long", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME },
2935	{ "long-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NP },
2936	{ "long-nx", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE },
2937	{ "long-nx-np", DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME \| DBGFPGDMP_FLAGS_NXE \| DBGFPGDMP_FLAGS_NP }
2938	};
2939	int i = RT_ELEMENTS(s_aModeToFlags);
2940	while (i-- > 0)
2941	if (!strcmp(s_aModeToFlags[i].pszName, paArgs[2].u.pszString))
2942	{
2943	fFlags \|= s_aModeToFlags[i].fFlags;
2944	break;
2945	}
2946	if (i < 0)
2947	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Unknown mode: \"%s\"", paArgs[2].u.pszString);
2948	}
2949	else
2950	fFlags \|= DBGFPGDMP_FLAGS_CURRENT_MODE;
2951
2952	/*
2953	* Call the worker.
2954	*/
2955	rc = DBGFR3PagingDumpEx(pVM, pDbgc->idCpu, fFlags, cr3, GCPtrFirst, GCPtrLast, 99 /cMaxDepth/,
2956	DBGCCmdHlpGetDbgfOutputHlp(pCmdHlp));
2957	if (RT_FAILURE(rc))
2958	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3PagingDumpEx: %Rrc\n", rc);
2959	return VINF_SUCCESS;
2960	}
2961
2962
2963
2964	/**
2965	* The 'dpg*' commands.
2966	*
2967	* @returns VBox status.
2968	* @param pCmd Pointer to the command descriptor (as registered).
2969	* @param pCmdHlp Pointer to command helper functions.
2970	* @param pVM Pointer to the current VM (if any).
2971	* @param paArgs Pointer to (readonly) array of arguments.
2972	* @param cArgs Number of arguments in the array.
2973	*/
2974	static DECLCALLBACK(int) dbgcCmdDumpPageTable(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
2975	{
2976	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
2977
2978	/*
2979	* Validate input.
2980	*/
2981	if ( cArgs != 1
2982	\|\| (pCmd->pszCmd[3] == 'a' && !DBGCVAR_ISPOINTER(paArgs[0].enmType))
2983	\|\| (pCmd->pszCmd[3] != 'a' && !(paArgs[0].enmType == DBGCVAR_TYPE_NUMBER \|\| DBGCVAR_ISPOINTER(paArgs[0].enmType)))
2984	)
2985	return DBGCCmdHlpPrintf(pCmdHlp, "internal error: The parser doesn't do its job properly yet.. It might help to use the '%%' operator.\n");
2986	if (!pVM)
2987	return DBGCCmdHlpPrintf(pCmdHlp, "error: No VM.\n");
2988
2989	/*
2990	* Guest or shadow page tables? Get the paging parameters.
2991	*/
2992	bool fGuest = pCmd->pszCmd[3] != 'h';
2993	if (!pCmd->pszCmd[3] \|\| pCmd->pszCmd[3] == 'a')
2994	fGuest = paArgs[0].enmType == DBGCVAR_TYPE_NUMBER
2995	? pDbgc->fRegCtxGuest
2996	: DBGCVAR_ISGCPOINTER(paArgs[0].enmType);
2997
2998	bool fPAE, fLME, fPSE, fPGE, fNXE;
2999	uint64_t cr3 = fGuest
3000	? dbgcGetGuestPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE)
3001	: dbgcGetShadowPageMode(pDbgc, &fPAE, &fLME, &fPSE, &fPGE, &fNXE);
3002	const unsigned cbEntry = fPAE ? sizeof(X86PTEPAE) : sizeof(X86PTE);
3003
3004	/*
3005	* Locate the PTE to start displaying at.
3006	*
3007	* The 'dpta' command takes the address of a PTE, while the others are guest
3008	* virtual address which PTEs should be displayed. So, 'pdta' is rather simple
3009	* while the others require us to do all the tedious walking thru the paging
3010	* hierarchy to find the intended PTE.
3011	*/
3012	unsigned iEntry = ~0U; /* The page table index. ~0U for 'dpta'. */
3013	DBGCVAR VarGCPtr; /* The GC address corresponding to the current PTE (iEntry != ~0U). */
3014	DBGCVAR VarPTEAddr; /* The address of the current PTE. */
3015	unsigned cEntries; /* The number of entries to display. */
3016	unsigned cEntriesMax; /* The max number of entries to display. */
3017	int rc;
3018	if (pCmd->pszCmd[3] == 'a')
3019	{
3020	VarPTEAddr = paArgs[0];
3021	switch (VarPTEAddr.enmRangeType)
3022	{
3023	case DBGCVAR_RANGE_BYTES: cEntries = VarPTEAddr.u64Range / cbEntry; break;
3024	case DBGCVAR_RANGE_ELEMENTS: cEntries = VarPTEAddr.u64Range; break;
3025	default: cEntries = 10; break;
3026	}
3027	cEntriesMax = PAGE_SIZE / cbEntry;
3028	}
3029	else
3030	{
3031	/*
3032	* Determine the range.
3033	*/
3034	switch (paArgs[0].enmRangeType)
3035	{
3036	case DBGCVAR_RANGE_BYTES: cEntries = paArgs[0].u64Range / PAGE_SIZE; break;
3037	case DBGCVAR_RANGE_ELEMENTS: cEntries = paArgs[0].u64Range; break;
3038	default: cEntries = 10; break;
3039	}
3040
3041	/*
3042	* Normalize the input address, it must be a flat GC address.
3043	*/
3044	rc = DBGCCmdHlpEval(pCmdHlp, &VarGCPtr, "%%(%Dv)", &paArgs[0]);
3045	if (RT_FAILURE(rc))
3046	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3047	if (VarGCPtr.enmType == DBGCVAR_TYPE_HC_FLAT)
3048	{
3049	VarGCPtr.u.GCFlat = (uintptr_t)VarGCPtr.u.pvHCFlat;
3050	VarGCPtr.enmType = DBGCVAR_TYPE_GC_FLAT;
3051	}
3052	VarGCPtr.u.GCFlat &= ~(RTGCPTR)PAGE_OFFSET_MASK;
3053
3054	/*
3055	* Do the paging walk until we get to the page table.
3056	*/
3057	DBGCVAR VarCur;
3058	if (fGuest)
3059	DBGCVAR_INIT_GC_PHYS(&VarCur, cr3);
3060	else
3061	DBGCVAR_INIT_HC_PHYS(&VarCur, cr3);
3062	if (fLME)
3063	{
3064	/* Page Map Level 4 Lookup. */
3065	/* Check if it's a valid address first? */
3066	VarCur.u.u64Number &= X86_PTE_PAE_PG_MASK;
3067	VarCur.u.u64Number += (((uint64_t)VarGCPtr.u.GCFlat >> X86_PML4_SHIFT) & X86_PML4_MASK) * sizeof(X86PML4E);
3068	X86PML4E Pml4e;
3069	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pml4e, sizeof(Pml4e), &VarCur, NULL);
3070	if (RT_FAILURE(rc))
3071	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PML4E memory at %DV.\n", &VarCur);
3072	if (!Pml4e.n.u1Present)
3073	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory pointer table is not present for %Dv.\n", &VarGCPtr);
3074
3075	VarCur.u.u64Number = Pml4e.u & X86_PML4E_PG_MASK;
3076	Assert(fPAE);
3077	}
3078	if (fPAE)
3079	{
3080	/* Page directory pointer table. */
3081	X86PDPE Pdpe;
3082	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE) * sizeof(Pdpe);
3083	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pdpe, sizeof(Pdpe), &VarCur, NULL);
3084	if (RT_FAILURE(rc))
3085	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDPE memory at %DV.\n", &VarCur);
3086	if (!Pdpe.n.u1Present)
3087	return DBGCCmdHlpPrintf(pCmdHlp, "Page directory is not present for %Dv.\n", &VarGCPtr);
3088
3089	VarCur.u.u64Number = Pdpe.u & X86_PDPE_PG_MASK;
3090
3091	/* Page directory (PAE). */
3092	X86PDEPAE Pde;
3093	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK) * sizeof(Pde);
3094	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3095	if (RT_FAILURE(rc))
3096	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3097	if (!Pde.n.u1Present)
3098	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3099	if (fPSE && Pde.n.u1Size)
3100	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3101
3102	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
3103	VarPTEAddr = VarCur;
3104	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PAE_PG_MASK;
3105	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTEPAE);
3106	}
3107	else
3108	{
3109	/* Page directory (legacy). */
3110	X86PDE Pde;
3111	VarCur.u.u64Number += ((VarGCPtr.u.GCFlat >> X86_PD_SHIFT) & X86_PD_MASK) * sizeof(Pde);
3112	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pde, sizeof(Pde), &VarCur, NULL);
3113	if (RT_FAILURE(rc))
3114	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PDE memory at %DV.\n", &VarCur);
3115	if (!Pde.n.u1Present)
3116	return DBGCCmdHlpPrintf(pCmdHlp, "Page table is not present for %Dv.\n", &VarGCPtr);
3117	if (fPSE && Pde.n.u1Size)
3118	return pCmdHlp->pfnExec(pCmdHlp, "dpd%s %Dv L3", &pCmd->pszCmd[3], &VarGCPtr);
3119
3120	iEntry = (VarGCPtr.u.GCFlat >> X86_PT_SHIFT) & X86_PT_MASK;
3121	VarPTEAddr = VarCur;
3122	VarPTEAddr.u.u64Number = Pde.u & X86_PDE_PG_MASK;
3123	VarPTEAddr.u.u64Number += iEntry * sizeof(X86PTE);
3124	}
3125	cEntriesMax = (PAGE_SIZE - iEntry) / cbEntry;
3126	iEntry /= cbEntry;
3127	}
3128
3129	/* adjust cEntries */
3130	cEntries = RT_MAX(1, cEntries);
3131	cEntries = RT_MIN(cEntries, cEntriesMax);
3132
3133	/*
3134	* The display loop.
3135	*/
3136	DBGCCmdHlpPrintf(pCmdHlp, iEntry != ~0U ? "%DV (base %DV / index %#x):\n" : "%DV:\n",
3137	&VarPTEAddr, &VarGCPtr, iEntry);
3138	do
3139	{
3140	/*
3141	* Read.
3142	*/
3143	X86PTEPAE Pte;
3144	Pte.u = 0;
3145	rc = pCmdHlp->pfnMemRead(pCmdHlp, pVM, &Pte, cbEntry, &VarPTEAddr, NULL);
3146	if (RT_FAILURE(rc))
3147	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "Reading PTE memory at %DV.\n", &VarPTEAddr);
3148
3149	/*
3150	* Display.
3151	*/
3152	if (iEntry != ~0U)
3153	{
3154	DBGCCmdHlpPrintf(pCmdHlp, "%03x %DV: ", iEntry, &VarGCPtr);
3155	iEntry++;
3156	}
3157	DBGCCmdHlpPrintf(pCmdHlp,
3158	fPAE
3159	? "%016llx 4kb phys=%016llx %s %s %s %s %s avl=%02x %s %s %s %s %s"
3160	: "%08llx 4kb phys=%08llx %s %s %s %s %s avl=%02x %s %s %s %s %s",
3161	Pte.u,
3162	Pte.u & X86_PTE_PAE_PG_MASK,
3163	Pte.n.u1Present ? "p " : "np",
3164	Pte.n.u1Write ? "w" : "r",
3165	Pte.n.u1User ? "u" : "s",
3166	Pte.n.u1Accessed ? "a " : "na",
3167	Pte.n.u1Dirty ? "d " : "nd",
3168	Pte.n.u3Available,
3169	Pte.n.u1Global ? (fPGE ? "g" : "G") : " ",
3170	Pte.n.u1WriteThru ? "pwt" : " ",
3171	Pte.n.u1CacheDisable ? "pcd" : " ",
3172	Pte.n.u1PAT ? "pat" : " ",
3173	Pte.n.u1NoExecute ? (fNXE ? "nx" : "NX") : " "
3174	);
3175	if (Pte.u & UINT64_C(0x7fff000000000000))
3176	DBGCCmdHlpPrintf(pCmdHlp, " weird=%RX64", (Pte.u & UINT64_C(0x7fff000000000000)));
3177	rc = DBGCCmdHlpPrintf(pCmdHlp, "\n");
3178	if (RT_FAILURE(rc))
3179	return rc;
3180
3181	/*
3182	* Advance.
3183	*/
3184	VarPTEAddr.u.u64Number += cbEntry;
3185	if (iEntry != ~0U)
3186	VarGCPtr.u.GCFlat += PAGE_SIZE;
3187	} while (cEntries-- > 0);
3188
3189	NOREF(pResult);
3190	return VINF_SUCCESS;
3191	}
3192
3193
3194	/**
3195	* The 'dptb' command.
3196	*
3197	* @returns VBox status.
3198	* @param pCmd Pointer to the command descriptor (as registered).
3199	* @param pCmdHlp Pointer to command helper functions.
3200	* @param pVM Pointer to the current VM (if any).
3201	* @param paArgs Pointer to (readonly) array of arguments.
3202	* @param cArgs Number of arguments in the array.
3203	*/
3204	static DECLCALLBACK(int) dbgcCmdDumpPageTableBoth(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3205	{
3206	if (!pVM)
3207	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: No VM.\n");
3208	int rc1 = pCmdHlp->pfnExec(pCmdHlp, "dptg %DV", &paArgs[0]);
3209	int rc2 = pCmdHlp->pfnExec(pCmdHlp, "dpth %DV", &paArgs[0]);
3210	if (RT_FAILURE(rc1))
3211	return rc1;
3212	NOREF(pCmd); NOREF(cArgs); NOREF(pResult);
3213	return rc2;
3214	}
3215
3216
3217	/**
3218	* The 'dt' command.
3219	*
3220	* @returns VBox status.
3221	* @param pCmd Pointer to the command descriptor (as registered).
3222	* @param pCmdHlp Pointer to command helper functions.
3223	* @param pVM Pointer to the current VM (if any).
3224	* @param paArgs Pointer to (readonly) array of arguments.
3225	* @param cArgs Number of arguments in the array.
3226	*/
3227	static DECLCALLBACK(int) dbgcCmdDumpTSS(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR /pResult/)
3228	{
3229	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3230	int rc;
3231
3232	if (!pVM)
3233	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3234	if ( cArgs > 1
3235	\|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_STRING)
3236	\|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_SYMBOL))
3237	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet...\n");
3238
3239	/*
3240	* Check if the command indicates the type.
3241	*/
3242	enum { kTss16, kTss32, kTss64, kTssToBeDetermined } enmTssType = kTssToBeDetermined;
3243	if (!strcmp(pCmd->pszCmd, "dt16"))
3244	enmTssType = kTss16;
3245	else if (!strcmp(pCmd->pszCmd, "dt32"))
3246	enmTssType = kTss32;
3247	else if (!strcmp(pCmd->pszCmd, "dt64"))
3248	enmTssType = kTss64;
3249
3250	/*
3251	* We can get a TSS selector (number), a far pointer using a TSS selector, or some kind of TSS pointer.
3252	*/
3253	uint32_t SelTss = UINT32_MAX;
3254	DBGCVAR VarTssAddr;
3255	if (cArgs == 0)
3256	{
3257	/** @todo consider querying the hidden bits instead (missing API). */
3258	uint16_t SelTR;
3259	rc = DBGFR3RegCpuQueryU16(pVM, pDbgc->idCpu, DBGFREG_TR, &SelTR);
3260	if (RT_FAILURE(rc))
3261	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to query TR, rc=%Rrc\n", rc);
3262	DBGCVAR_INIT_GC_FAR(&VarTssAddr, SelTR, 0);
3263	SelTss = SelTR;
3264	}
3265	else if (paArgs[0].enmType == DBGCVAR_TYPE_NUMBER)
3266	{
3267	if (paArgs[0].u.u64Number < 0xffff)
3268	DBGCVAR_INIT_GC_FAR(&VarTssAddr, (RTSEL)paArgs[0].u.u64Number, 0);
3269	else
3270	{
3271	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_ELEMENTS)
3272	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Element count doesn't combine with a TSS address.\n");
3273	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, paArgs[0].u.u64Number);
3274	if (paArgs[0].enmRangeType == DBGCVAR_RANGE_BYTES)
3275	{
3276	VarTssAddr.enmRangeType = paArgs[0].enmRangeType;
3277	VarTssAddr.u64Range = paArgs[0].u64Range;
3278	}
3279	}
3280	}
3281	else
3282	VarTssAddr = paArgs[0];
3283
3284	/*
3285	* Deal with TSS:ign by means of the GDT.
3286	*/
3287	if (VarTssAddr.enmType == DBGCVAR_TYPE_GC_FAR)
3288	{
3289	SelTss = VarTssAddr.u.GCFar.sel;
3290	DBGFSELINFO SelInfo;
3291	rc = DBGFR3SelQueryInfo(pVM, pDbgc->idCpu, VarTssAddr.u.GCFar.sel, DBGFSELQI_FLAGS_DT_GUEST, &SelInfo);
3292	if (RT_FAILURE(rc))
3293	return DBGCCmdHlpFail(pCmdHlp, pCmd, "DBGFR3SelQueryInfo(,%u,%d,,) -> %Rrc.\n",
3294	pDbgc->idCpu, VarTssAddr.u.GCFar.sel, rc);
3295
3296	if (SelInfo.u.Raw.Gen.u1DescType)
3297	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (!sys)\n", VarTssAddr.u.GCFar.sel);
3298
3299	switch (SelInfo.u.Raw.Gen.u4Type)
3300	{
3301	case X86_SEL_TYPE_SYS_286_TSS_BUSY:
3302	case X86_SEL_TYPE_SYS_286_TSS_AVAIL:
3303	if (enmTssType == kTssToBeDetermined)
3304	enmTssType = kTss16;
3305	break;
3306
3307	case X86_SEL_TYPE_SYS_386_TSS_BUSY: /* AMD64 too */
3308	case X86_SEL_TYPE_SYS_386_TSS_AVAIL:
3309	if (enmTssType == kTssToBeDetermined)
3310	enmTssType = SelInfo.fFlags & DBGFSELINFO_FLAGS_LONG_MODE ? kTss64 : kTss32;
3311	break;
3312
3313	default:
3314	return DBGCCmdHlpFail(pCmdHlp, pCmd, "%04x is not a TSS selector. (type=%x)\n",
3315	VarTssAddr.u.GCFar.sel, SelInfo.u.Raw.Gen.u4Type);
3316	}
3317
3318	DBGCVAR_INIT_GC_FLAT(&VarTssAddr, SelInfo.GCPtrBase);
3319	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, RT_MAX(SelInfo.cbLimit + 1, SelInfo.cbLimit));
3320	}
3321
3322	/*
3323	* Determine the TSS type if none is currently given.
3324	*/
3325	if (enmTssType == kTssToBeDetermined)
3326	{
3327	if ( VarTssAddr.u64Range > 0
3328	&& VarTssAddr.u64Range < sizeof(X86TSS32) - 4)
3329	enmTssType = kTss16;
3330	else
3331	{
3332	uint64_t uEfer;
3333	rc = DBGFR3RegCpuQueryU64(pVM, pDbgc->idCpu, DBGFREG_MSR_K6_EFER, &uEfer);
3334	if ( RT_FAILURE(rc)
3335	\|\| !(uEfer & MSR_K6_EFER_LMA) )
3336	enmTssType = kTss32;
3337	else
3338	enmTssType = kTss64;
3339	}
3340	}
3341
3342	/*
3343	* Figure the min/max sizes.
3344	* ASSUMES max TSS size is 64 KB.
3345	*/
3346	uint32_t cbTssMin;
3347	uint32_t cbTssMax;
3348	switch (enmTssType)
3349	{
3350	case kTss16:
3351	cbTssMin = cbTssMax = sizeof(X86TSS16);
3352	break;
3353	case kTss32:
3354	cbTssMin = RT_OFFSETOF(X86TSS32, IntRedirBitmap);
3355	cbTssMax = _64K;
3356	break;
3357	case kTss64:
3358	cbTssMin = RT_OFFSETOF(X86TSS64, IntRedirBitmap);
3359	cbTssMax = _64K;
3360	break;
3361	default:
3362	AssertFailedReturn(VERR_INTERNAL_ERROR);
3363	}
3364	uint32_t cbTss = VarTssAddr.enmRangeType == DBGCVAR_RANGE_BYTES ? (uint32_t)VarTssAddr.u64Range : 0;
3365	if (cbTss == 0)
3366	cbTss = cbTssMin;
3367	else if (cbTss < cbTssMin)
3368	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Minimum TSS size is %u bytes, you specified %llu (%llx) bytes.\n",
3369	cbTssMin, VarTssAddr.u64Range, VarTssAddr.u64Range);
3370	else if (cbTss > cbTssMax)
3371	cbTss = cbTssMax;
3372	DBGCVAR_SET_RANGE(&VarTssAddr, DBGCVAR_RANGE_BYTES, cbTss);
3373
3374	/*
3375	* Read the TSS into a temporary buffer.
3376	*/
3377	uint8_t abBuf[_64K];
3378	size_t cbTssRead;
3379	rc = DBGCCmdHlpMemRead(pCmdHlp, pVM, abBuf, cbTss, &VarTssAddr, &cbTssRead);
3380	if (RT_FAILURE(rc))
3381	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read TSS at %Dv: %Rrc\n", &VarTssAddr, rc);
3382	if (cbTssRead < cbTssMin)
3383	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Failed to read essential parts of the TSS (read %zu, min %zu).\n",
3384	cbTssRead, cbTssMin);
3385	if (cbTssRead < cbTss)
3386	memset(&abBuf[cbTssRead], 0xff, cbTss - cbTssRead);
3387
3388
3389	/*
3390	* Format the TSS.
3391	*/
3392	uint16_t offIoBitmap;
3393	switch (enmTssType)
3394	{
3395	case kTss16:
3396	{
3397	PCX86TSS16 pTss = (PCX86TSS16)&abBuf[0];
3398	if (SelTss != UINT32_MAX)
3399	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS16 at %Dv\n", SelTss, &VarTssAddr);
3400	else
3401	DBGCCmdHlpPrintf(pCmdHlp, "TSS16 at %Dv\n", &VarTssAddr);
3402	DBGCCmdHlpPrintf(pCmdHlp,
3403	"ax=%04x bx=%04x cx=%04x dx=%04x si=%04x di=%04x\n"
3404	"ip=%04x sp=%04x bp=%04x\n"
3405	"cs=%04x ss=%04x ds=%04x es=%04x flags=%04x\n"
3406	"ss:sp0=%04x:%04x ss:sp1=%04x:%04x ss:sp2=%04x:%04x\n"
3407	"prev=%04x ldtr=%04x\n"
3408	,
3409	pTss->ax, pTss->bx, pTss->cx, pTss->dx, pTss->si, pTss->di,
3410	pTss->ip, pTss->sp, pTss->bp,
3411	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->flags,
3412	pTss->ss0, pTss->sp0, pTss->ss1, pTss->sp1, pTss->ss2, pTss->sp2,
3413	pTss->selPrev, pTss->selLdt);
3414	if (pTss->cs != 0)
3415	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%04x L 0", pTss->cs, pTss->ip);
3416	offIoBitmap = 0;
3417	break;
3418	}
3419
3420	case kTss32:
3421	{
3422	PCX86TSS32 pTss = (PCX86TSS32)&abBuf[0];
3423	if (SelTss != UINT32_MAX)
3424	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS32 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3425	else
3426	DBGCCmdHlpPrintf(pCmdHlp, "TSS32 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3427	DBGCCmdHlpPrintf(pCmdHlp,
3428	"eax=%08x bx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
3429	"eip=%08x esp=%08x ebp=%08x\n"
3430	"cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x eflags=%08x\n"
3431	"ss:esp0=%04x:%08x ss:esp1=%04x:%08x ss:esp2=%04x:%08x\n"
3432	"prev=%04x ldtr=%04x cr3=%08x debug=%u iomap=%04x\n"
3433	,
3434	pTss->eax, pTss->ebx, pTss->ecx, pTss->edx, pTss->esi, pTss->edi,
3435	pTss->eip, pTss->esp, pTss->ebp,
3436	pTss->cs, pTss->ss, pTss->ds, pTss->es, pTss->fs, pTss->gs, pTss->eflags,
3437	pTss->ss0, pTss->esp0, pTss->ss1, pTss->esp1, pTss->ss2, pTss->esp2,
3438	pTss->selPrev, pTss->selLdt, pTss->cr3, pTss->fDebugTrap, pTss->offIoBitmap);
3439	if (pTss->cs != 0)
3440	pCmdHlp->pfnExec(pCmdHlp, "u %04x:%08x L 0", pTss->cs, pTss->eip);
3441	offIoBitmap = pTss->offIoBitmap;
3442	break;
3443	}
3444
3445	case kTss64:
3446	{
3447	PCX86TSS64 pTss = (PCX86TSS64)&abBuf[0];
3448	if (SelTss != UINT32_MAX)
3449	DBGCCmdHlpPrintf(pCmdHlp, "%04x TSS64 at %Dv (min=%04x)\n", SelTss, &VarTssAddr, cbTssMin);
3450	else
3451	DBGCCmdHlpPrintf(pCmdHlp, "TSS64 at %Dv (min=%04x)\n", &VarTssAddr, cbTssMin);
3452	DBGCCmdHlpPrintf(pCmdHlp,
3453	"rsp0=%016RX16 rsp1=%016RX16 rsp2=%016RX16\n"
3454	"ist1=%016RX16 ist2=%016RX16\n"
3455	"ist3=%016RX16 ist4=%016RX16\n"
3456	"ist5=%016RX16 ist6=%016RX16\n"
3457	"ist7=%016RX16 iomap=%04x\n"
3458	,
3459	pTss->rsp0, pTss->rsp1, pTss->rsp2,
3460	pTss->ist1, pTss->ist2,
3461	pTss->ist3, pTss->ist4,
3462	pTss->ist5, pTss->ist6,
3463	pTss->ist7, pTss->offIoBitmap);
3464	offIoBitmap = pTss->offIoBitmap;
3465	break;
3466	}
3467
3468	default:
3469	AssertFailedReturn(VERR_INTERNAL_ERROR);
3470	}
3471
3472	/*
3473	* Dump the interrupt redirection bitmap.
3474	*/
3475	if (enmTssType != kTss16)
3476	{
3477	if ( offIoBitmap > cbTssMin
3478	&& offIoBitmap < cbTss) /** @todo check exactly what the edge cases are here. */
3479	{
3480	if (offIoBitmap - cbTssMin >= 32)
3481	{
3482	DBGCCmdHlpPrintf(pCmdHlp, "Interrupt redirection:\n");
3483	uint8_t const *pbIntRedirBitmap = &abBuf[offIoBitmap - 32];
3484	uint32_t iStart = 0;
3485	bool fPrev = ASMBitTest(pbIntRedirBitmap, 0); /* LE/BE issue */
3486	for (uint32_t i = 0; i < 256; i++)
3487	{
3488	bool fThis = ASMBitTest(pbIntRedirBitmap, i);
3489	if (fThis != fPrev)
3490	{
3491	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, i - 1, fPrev ? "Protected mode" : "Redirected");
3492	fPrev = fThis;
3493	iStart = i;
3494	}
3495	}
3496	if (iStart != 255)
3497	DBGCCmdHlpPrintf(pCmdHlp, "%02x-%02x %s\n", iStart, 255, fPrev ? "Protected mode" : "Redirected");
3498	}
3499	else
3500	DBGCCmdHlpPrintf(pCmdHlp, "Invalid interrupt redirection bitmap size: %u (%#x), expected 32 bytes.\n",
3501	offIoBitmap - cbTssMin, offIoBitmap - cbTssMin);
3502	}
3503	else if (offIoBitmap > 0)
3504	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3505	else
3506	DBGCCmdHlpPrintf(pCmdHlp, "No interrupt redirection bitmap\n");
3507	}
3508
3509	/*
3510	* Dump the I/O bitmap if present.
3511	*/
3512	if (enmTssType != kTss16)
3513	{
3514	if (offIoBitmap < cbTss)
3515	{
3516	uint32_t cPorts = RT_MIN((cbTss - offIoBitmap) * 8, _64K);
3517	DBGCVAR VarAddr;
3518	DBGCCmdHlpEval(pCmdHlp, &VarAddr, "%DV + %#x", &VarTssAddr, offIoBitmap);
3519	DBGCCmdHlpPrintf(pCmdHlp, "I/O bitmap at %DV - %#x ports:\n", &VarAddr, cPorts);
3520
3521	uint8_t const *pbIoBitmap = &abBuf[offIoBitmap];
3522	uint32_t iStart = 0;
3523	bool fPrev = ASMBitTest(pbIoBitmap, 0);
3524	uint32_t cLine = 0;
3525	for (uint32_t i = 1; i < cPorts; i++)
3526	{
3527	bool fThis = ASMBitTest(pbIoBitmap, i);
3528	if (fThis != fPrev)
3529	{
3530	cLine++;
3531	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s%s", iStart, i-1,
3532	fPrev ? "GP" : "OK", (cLine % 6) == 0 ? "\n" : " ");
3533	fPrev = fThis;
3534	iStart = i;
3535	}
3536	}
3537	if (iStart != _64K-1)
3538	DBGCCmdHlpPrintf(pCmdHlp, "%04x-%04x %s\n", iStart, _64K-1, fPrev ? "GP" : "OK");
3539	}
3540	else if (offIoBitmap > 0)
3541	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap (-%#x)\n", cbTssMin - offIoBitmap);
3542	else
3543	DBGCCmdHlpPrintf(pCmdHlp, "No I/O bitmap\n");
3544	}
3545
3546	return VINF_SUCCESS;
3547	}
3548
3549
3550	/**
3551	* The 'm' command.
3552	*
3553	* @returns VBox status.
3554	* @param pCmd Pointer to the command descriptor (as registered).
3555	* @param pCmdHlp Pointer to command helper functions.
3556	* @param pVM Pointer to the current VM (if any).
3557	* @param paArgs Pointer to (readonly) array of arguments.
3558	* @param cArgs Number of arguments in the array.
3559	*/
3560	static DECLCALLBACK(int) dbgcCmdMemoryInfo(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3561	{
3562	DBGCCmdHlpPrintf(pCmdHlp, "Address: %DV\n", &paArgs[0]);
3563	if (!pVM)
3564	return DBGCCmdHlpFail(pCmdHlp, pCmd, "No VM.\n");
3565	return dbgcCmdDumpPageHierarchy(pCmd, pCmdHlp, pVM, paArgs, cArgs, pResult);
3566	}
3567
3568
3569	/**
3570	* Converts one or more variables into a byte buffer for a
3571	* given unit size.
3572	*
3573	* @returns VBox status codes:
3574	* @retval VERR_TOO_MUCH_DATA if the buffer is too small, bitched.
3575	* @retval VERR_INTERNAL_ERROR on bad variable type, bitched.
3576	* @retval VINF_SUCCESS on success.
3577	*
3578	* @param pvBuf The buffer to convert into.
3579	* @param pcbBuf The buffer size on input. The size of the result on output.
3580	* @param cbUnit The unit size to apply when converting.
3581	* The high bit is used to indicate unicode string.
3582	* @param paVars The array of variables to convert.
3583	* @param cVars The number of variables.
3584	*/
3585	int dbgcVarsToBytes(PDBGCCMDHLP pCmdHlp, void pvBuf, uint32_t pcbBuf, size_t cbUnit, PCDBGCVAR paVars, unsigned cVars)
3586	{
3587	union
3588	{
3589	uint8_t *pu8;
3590	uint16_t *pu16;
3591	uint32_t *pu32;
3592	uint64_t *pu64;
3593	} u, uEnd;
3594	u.pu8 = (uint8_t *)pvBuf;
3595	uEnd.pu8 = u.pu8 + *pcbBuf;
3596
3597	unsigned i;
3598	for (i = 0; i < cVars && u.pu8 < uEnd.pu8; i++)
3599	{
3600	switch (paVars[i].enmType)
3601	{
3602	case DBGCVAR_TYPE_GC_FAR:
3603	case DBGCVAR_TYPE_GC_FLAT:
3604	case DBGCVAR_TYPE_GC_PHYS:
3605	case DBGCVAR_TYPE_HC_FLAT:
3606	case DBGCVAR_TYPE_HC_PHYS:
3607	case DBGCVAR_TYPE_NUMBER:
3608	{
3609	uint64_t u64 = paVars[i].u.u64Number;
3610	switch (cbUnit & 0x1f)
3611	{
3612	case 1:
3613	do
3614	{
3615	*u.pu8++ = u64;
3616	u64 >>= 8;
3617	} while (u64);
3618	break;
3619	case 2:
3620	do
3621	{
3622	*u.pu16++ = u64;
3623	u64 >>= 16;
3624	} while (u64);
3625	break;
3626	case 4:
3627	*u.pu32++ = u64;
3628	u64 >>= 32;
3629	if (u64)
3630	*u.pu32++ = u64;
3631	break;
3632	case 8:
3633	*u.pu64++ = u64;
3634	break;
3635	}
3636	break;
3637	}
3638
3639	case DBGCVAR_TYPE_STRING:
3640	case DBGCVAR_TYPE_SYMBOL:
3641	{
3642	const char *psz = paVars[i].u.pszString;
3643	size_t cbString = strlen(psz);
3644	if (cbUnit & RT_BIT_32(31))
3645	{
3646	/* Explode char to unit. */
3647	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8) * (cbUnit & 0x1f))
3648	{
3649	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3650	return VERR_TOO_MUCH_DATA;
3651	}
3652	while (*psz)
3653	{
3654	switch (cbUnit & 0x1f)
3655	{
3656	case 1: u.pu8++ = psz; break;
3657	case 2: u.pu16++ = psz; break;
3658	case 4: u.pu32++ = psz; break;
3659	case 8: u.pu64++ = psz; break;
3660	}
3661	psz++;
3662	}
3663	}
3664	else
3665	{
3666	/* Raw copy with zero padding if the size isn't aligned. */
3667	if (cbString > (uintptr_t)(uEnd.pu8 - u.pu8))
3668	{
3669	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3670	return VERR_TOO_MUCH_DATA;
3671	}
3672
3673	size_t cbCopy = cbString & ~(cbUnit - 1);
3674	memcpy(u.pu8, psz, cbCopy);
3675	u.pu8 += cbCopy;
3676	psz += cbCopy;
3677
3678	size_t cbReminder = cbString & (cbUnit - 1);
3679	if (cbReminder)
3680	{
3681	memcpy(u.pu8, psz, cbString & (cbUnit - 1));
3682	memset(u.pu8 + cbReminder, 0, cbUnit - cbReminder);
3683	u.pu8 += cbUnit;
3684	}
3685	}
3686	break;
3687	}
3688
3689	default:
3690	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3691	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INTERNAL_ERROR,
3692	"i=%d enmType=%d\n", i, paVars[i].enmType);
3693	return VERR_INTERNAL_ERROR;
3694	}
3695	}
3696	pcbBuf = u.pu8 - (uint8_t )pvBuf;
3697	if (i != cVars)
3698	{
3699	pCmdHlp->pfnVBoxError(pCmdHlp, VERR_TOO_MUCH_DATA, "Max %d bytes.\n", uEnd.pu8 - (uint8_t *)pvBuf);
3700	return VERR_TOO_MUCH_DATA;
3701	}
3702	return VINF_SUCCESS;
3703	}
3704
3705
3706	/**
3707	* The 'eb', 'ew', 'ed' and 'eq' commands.
3708	*
3709	* @returns VBox status.
3710	* @param pCmd Pointer to the command descriptor (as registered).
3711	* @param pCmdHlp Pointer to command helper functions.
3712	* @param pVM Pointer to the current VM (if any).
3713	* @param paArgs Pointer to (readonly) array of arguments.
3714	* @param cArgs Number of arguments in the array.
3715	*/
3716	static DECLCALLBACK(int) dbgcCmdEditMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3717	{
3718	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3719	unsigned iArg;
3720
3721	/*
3722	* Validate input.
3723	*/
3724	if ( cArgs < 2
3725	\|\| !DBGCVAR_ISPOINTER(paArgs[0].enmType))
3726	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet... It might help to use the '%%' operator.\n");
3727	for (iArg = 1; iArg < cArgs; iArg++)
3728	if (paArgs[iArg].enmType != DBGCVAR_TYPE_NUMBER)
3729	return DBGCCmdHlpFail(pCmdHlp, pCmd, "internal error: The parser doesn't do its job properly yet: Arg #%u is not a number.\n", iArg);
3730	if (!pVM)
3731	return DBGCCmdHlpFail(pCmdHlp, pCmd, "error: No VM.\n");
3732
3733	/*
3734	* Figure out the element size.
3735	*/
3736	unsigned cbElement;
3737	switch (pCmd->pszCmd[1])
3738	{
3739	default:
3740	case 'b': cbElement = 1; break;
3741	case 'w': cbElement = 2; break;
3742	case 'd': cbElement = 4; break;
3743	case 'q': cbElement = 8; break;
3744	}
3745
3746	/*
3747	* Do setting.
3748	*/
3749	DBGCVAR Addr = paArgs[0];
3750	for (iArg = 1;;)
3751	{
3752	size_t cbWritten;
3753	int rc = pCmdHlp->pfnMemWrite(pCmdHlp, pVM, &paArgs[iArg].u, cbElement, &Addr, &cbWritten);
3754	if (RT_FAILURE(rc))
3755	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "Writing memory at %DV.\n", &Addr);
3756	if (cbWritten != cbElement)
3757	return DBGCCmdHlpFail(pCmdHlp, pCmd, "Only wrote %u out of %u bytes!\n", cbWritten, cbElement);
3758
3759	/* advance. */
3760	iArg++;
3761	if (iArg >= cArgs)
3762	break;
3763	rc = DBGCCmdHlpEval(pCmdHlp, &Addr, "%Dv + %#x", &Addr, cbElement);
3764	if (RT_FAILURE(rc))
3765	return DBGCCmdHlpVBoxError(pCmdHlp, rc, "%%(%Dv)", &paArgs[0]);
3766	}
3767
3768	NOREF(pResult);
3769	return VINF_SUCCESS;
3770	}
3771
3772
3773	/**
3774	* Executes the search.
3775	*
3776	* @returns VBox status code.
3777	* @param pCmdHlp The command helpers.
3778	* @param pVM The VM handle.
3779	* @param pAddress The address to start searching from. (undefined on output)
3780	* @param cbRange The address range to search. Must not wrap.
3781	* @param pabBytes The byte pattern to search for.
3782	* @param cbBytes The size of the pattern.
3783	* @param cbUnit The search unit.
3784	* @param cMaxHits The max number of hits.
3785	* @param pResult Where to store the result if it's a function invocation.
3786	*/
3787	static int dbgcCmdWorkerSearchMemDoIt(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGFADDRESS pAddress, RTGCUINTPTR cbRange,
3788	const uint8_t *pabBytes, uint32_t cbBytes,
3789	uint32_t cbUnit, uint64_t cMaxHits, PDBGCVAR pResult)
3790	{
3791	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3792
3793	/*
3794	* Do the search.
3795	*/
3796	uint64_t cHits = 0;
3797	for (;;)
3798	{
3799	/* search */
3800	DBGFADDRESS HitAddress;
3801	int rc = DBGFR3MemScan(pVM, pDbgc->idCpu, pAddress, cbRange, 1, pabBytes, cbBytes, &HitAddress);
3802	if (RT_FAILURE(rc))
3803	{
3804	if (rc != VERR_DBGF_MEM_NOT_FOUND)
3805	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3MemScan\n");
3806
3807	/* update the current address so we can save it (later). */
3808	pAddress->off += cbRange;
3809	pAddress->FlatPtr += cbRange;
3810	cbRange = 0;
3811	break;
3812	}
3813
3814	/* report result */
3815	DBGCVAR VarCur;
3816	dbgcVarInit(&VarCur);
3817	dbgcVarSetDbgfAddr(&VarCur, &HitAddress);
3818	if (!pResult)
3819	pCmdHlp->pfnExec(pCmdHlp, "db %DV LB 10", &VarCur);
3820	else
3821	dbgcVarSetDbgfAddr(pResult, &HitAddress);
3822
3823	/* advance */
3824	cbRange -= HitAddress.FlatPtr - pAddress->FlatPtr;
3825	*pAddress = HitAddress;
3826	pAddress->FlatPtr += cbBytes;
3827	pAddress->off += cbBytes;
3828	if (cbRange <= cbBytes)
3829	{
3830	cbRange = 0;
3831	break;
3832	}
3833	cbRange -= cbBytes;
3834
3835	if (++cHits >= cMaxHits)
3836	{
3837	/// @todo save the search.
3838	break;
3839	}
3840	}
3841
3842	/*
3843	* Save the search so we can resume it...
3844	*/
3845	if (pDbgc->abSearch != pabBytes)
3846	{
3847	memcpy(pDbgc->abSearch, pabBytes, cbBytes);
3848	pDbgc->cbSearch = cbBytes;
3849	pDbgc->cbSearchUnit = cbUnit;
3850	}
3851	pDbgc->cMaxSearchHits = cMaxHits;
3852	pDbgc->SearchAddr = *pAddress;
3853	pDbgc->cbSearchRange = cbRange;
3854
3855	return cHits ? VINF_SUCCESS : VERR_DBGC_COMMAND_FAILED;
3856	}
3857
3858
3859	/**
3860	* Resumes the previous search.
3861	*
3862	* @returns VBox status code.
3863	* @param pCmdHlp Pointer to the command helper functions.
3864	* @param pVM Pointer to the current VM (if any).
3865	* @param pResult Where to store the result of a function invocation.
3866	*/
3867	static int dbgcCmdWorkerSearchMemResume(PDBGCCMDHLP pCmdHlp, PVM pVM, PDBGCVAR pResult)
3868	{
3869	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
3870
3871	/*
3872	* Make sure there is a previous command.
3873	*/
3874	if (!pDbgc->cbSearch)
3875	{
3876	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Error: No previous search\n");
3877	return VERR_DBGC_COMMAND_FAILED;
3878	}
3879
3880	/*
3881	* Make range and address adjustments.
3882	*/
3883	DBGFADDRESS Address = pDbgc->SearchAddr;
3884	if (Address.FlatPtr == ~(RTGCUINTPTR)0)
3885	{
3886	Address.FlatPtr -= Address.off;
3887	Address.off = 0;
3888	}
3889
3890	RTGCUINTPTR cbRange = pDbgc->cbSearchRange;
3891	if (!cbRange)
3892	cbRange = ~(RTGCUINTPTR)0;
3893	if (Address.FlatPtr + cbRange < pDbgc->SearchAddr.FlatPtr)
3894	cbRange = ~(RTGCUINTPTR)0 - pDbgc->SearchAddr.FlatPtr + !!pDbgc->SearchAddr.FlatPtr;
3895
3896	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, pDbgc->abSearch, pDbgc->cbSearch,
3897	pDbgc->cbSearchUnit, pDbgc->cMaxSearchHits, pResult);
3898	}
3899
3900
3901	/**
3902	* Search memory, worker for the 's' and 's?' functions.
3903	*
3904	* @returns VBox status.
3905	* @param pCmdHlp Pointer to the command helper functions.
3906	* @param pVM Pointer to the current VM (if any).
3907	* @param pAddress Where to start searching. If no range, search till end of address space.
3908	* @param cMaxHits The maximum number of hits.
3909	* @param chType The search type.
3910	* @param paPatArgs The pattern variable array.
3911	* @param cPatArgs Number of pattern variables.
3912	* @param pResult Where to store the result of a function invocation.
3913	*/
3914	static int dbgcCmdWorkerSearchMem(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pAddress, uint64_t cMaxHits, char chType,
3915	PCDBGCVAR paPatArgs, unsigned cPatArgs, PDBGCVAR pResult)
3916	{
3917	dbgcVarSetGCFlat(pResult, 0);
3918
3919	/*
3920	* Convert the search pattern into bytes and DBGFR3MemScan can deal with.
3921	*/
3922	uint32_t cbUnit;
3923	switch (chType)
3924	{
3925	case 'a':
3926	case 'b': cbUnit = 1; break;
3927	case 'u': cbUnit = 2 \| RT_BIT_32(31); break;
3928	case 'w': cbUnit = 2; break;
3929	case 'd': cbUnit = 4; break;
3930	case 'q': cbUnit = 8; break;
3931	default:
3932	return pCmdHlp->pfnVBoxError(pCmdHlp, VERR_INVALID_PARAMETER, "chType=%c\n", chType);
3933	}
3934	uint8_t abBytes[RT_SIZEOFMEMB(DBGC, abSearch)];
3935	uint32_t cbBytes = sizeof(abBytes);
3936	int rc = dbgcVarsToBytes(pCmdHlp, abBytes, &cbBytes, cbUnit, paPatArgs, cPatArgs);
3937	if (RT_FAILURE(rc))
3938	return VERR_DBGC_COMMAND_FAILED;
3939
3940	/*
3941	* Make DBGF address and fix the range.
3942	*/
3943	DBGFADDRESS Address;
3944	rc = pCmdHlp->pfnVarToDbgfAddr(pCmdHlp, pAddress, &Address);
3945	if (RT_FAILURE(rc))
3946	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "VarToDbgfAddr(,%Dv,)\n", pAddress);
3947
3948	RTGCUINTPTR cbRange;
3949	switch (pAddress->enmRangeType)
3950	{
3951	case DBGCVAR_RANGE_BYTES:
3952	cbRange = pAddress->u64Range;
3953	if (cbRange != pAddress->u64Range)
3954	cbRange = ~(RTGCUINTPTR)0;
3955	break;
3956
3957	case DBGCVAR_RANGE_ELEMENTS:
3958	cbRange = (RTGCUINTPTR)(pAddress->u64Range * cbUnit);
3959	if ( cbRange != pAddress->u64Range * cbUnit
3960	\|\| cbRange < pAddress->u64Range)
3961	cbRange = ~(RTGCUINTPTR)0;
3962	break;
3963
3964	default:
3965	cbRange = ~(RTGCUINTPTR)0;
3966	break;
3967	}
3968	if (Address.FlatPtr + cbRange < Address.FlatPtr)
3969	cbRange = ~(RTGCUINTPTR)0 - Address.FlatPtr + !!Address.FlatPtr;
3970
3971	/*
3972	* Ok, do it.
3973	*/
3974	return dbgcCmdWorkerSearchMemDoIt(pCmdHlp, pVM, &Address, cbRange, abBytes, cbBytes, cbUnit, cMaxHits, pResult);
3975	}
3976
3977
3978	/**
3979	* The 's' command.
3980	*
3981	* @returns VBox status.
3982	* @param pCmd Pointer to the command descriptor (as registered).
3983	* @param pCmdHlp Pointer to command helper functions.
3984	* @param pVM Pointer to the current VM (if any).
3985	* @param paArgs Pointer to (readonly) array of arguments.
3986	* @param cArgs Number of arguments in the array.
3987	*/
3988	static DECLCALLBACK(int) dbgcCmdSearchMem(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3989	{
3990	/* check that the parser did what it's supposed to do. */
3991	//if ( cArgs <= 2
3992	// && paArgs[0].enmType != DBGCVAR_TYPE_STRING)
3993	// return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
3994
3995	/*
3996	* Repeat previous search?
3997	*/
3998	if (cArgs == 0)
3999	return dbgcCmdWorkerSearchMemResume(pCmdHlp, pVM, pResult);
4000
4001	/*
4002	* Parse arguments.
4003	*/
4004
4005	return -1;
4006	}
4007
4008
4009	/**
4010	* The 's?' command.
4011	*
4012	* @returns VBox status.
4013	* @param pCmd Pointer to the command descriptor (as registered).
4014	* @param pCmdHlp Pointer to command helper functions.
4015	* @param pVM Pointer to the current VM (if any).
4016	* @param paArgs Pointer to (readonly) array of arguments.
4017	* @param cArgs Number of arguments in the array.
4018	*/
4019	static DECLCALLBACK(int) dbgcCmdSearchMemType(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4020	{
4021	/* check that the parser did what it's supposed to do. */
4022	if ( cArgs < 2
4023	\|\| !DBGCVAR_ISGCPOINTER(paArgs[0].enmType))
4024	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "parser error\n");
4025	return dbgcCmdWorkerSearchMem(pCmdHlp, pVM, &paArgs[0], pResult ? 1 : 25, pCmd->pszCmd[1], paArgs + 1, cArgs - 1, pResult);
4026	}
4027
4028
4029	/**
4030	* List near symbol.
4031	*
4032	* @returns VBox status code.
4033	* @param pCmdHlp Pointer to command helper functions.
4034	* @param pVM Pointer to the current VM (if any).
4035	* @param pArg Pointer to the address or symbol to lookup.
4036	*/
4037	static int dbgcDoListNear(PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR pArg, PDBGCVAR pResult)
4038	{
4039	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4040	dbgcVarSetGCFlat(pResult, 0);
4041
4042	RTDBGSYMBOL Symbol;
4043	int rc;
4044	if (pArg->enmType == DBGCVAR_TYPE_SYMBOL)
4045	{
4046	/*
4047	* Lookup the symbol address.
4048	*/
4049	rc = DBGFR3AsSymbolByName(pVM, pDbgc->hDbgAs, pArg->u.pszString, &Symbol, NULL);
4050	if (RT_FAILURE(rc))
4051	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3AsSymbolByName(,,%s,)\n", pArg->u.pszString);
4052
4053	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%Rptr %s\n", Symbol.Value, Symbol.szName);
4054	dbgcVarSetGCFlatByteRange(pResult, Symbol.Value, Symbol.cb);
4055	}
4056	else
4057	{
4058	/*
4059	* Convert it to a flat GC address and lookup that address.
4060	*/
4061	DBGCVAR AddrVar;
4062	rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(%DV)", pArg);
4063	if (RT_FAILURE(rc))
4064	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(%DV)\n", pArg);
4065
4066	dbgcVarSetVar(pResult, &AddrVar);
4067
4068	RTINTPTR offDisp;
4069	DBGFADDRESS Addr;
4070	rc = DBGFR3AsSymbolByAddr(pVM, pDbgc->hDbgAs, DBGFR3AddrFromFlat(pVM, &Addr, AddrVar.u.GCFlat), &offDisp, &Symbol, NULL);
4071	if (RT_FAILURE(rc))
4072	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "DBGFR3ASymbolByAddr(,,%RGv,,)\n", AddrVar.u.GCFlat);
4073
4074	if (!offDisp)
4075	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s", &AddrVar, Symbol.szName);
4076	else if (offDisp > 0)
4077	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s + %RGv", &AddrVar, Symbol.szName, offDisp);
4078	else
4079	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "%DV %s - %RGv", &AddrVar, Symbol.szName, -offDisp);
4080	if ((RTGCINTPTR)Symbol.cb > -offDisp)
4081	{
4082	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, " LB %RGv\n", Symbol.cb + offDisp);
4083	dbgcVarSetByteRange(pResult, Symbol.cb + offDisp);
4084	}
4085	else
4086	{
4087	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\n");
4088	dbgcVarSetNoRange(pResult);
4089	}
4090	}
4091
4092	return rc;
4093	}
4094
4095
4096	/**
4097	* The 'ln' (listnear) command.
4098	*
4099	* @returns VBox status.
4100	* @param pCmd Pointer to the command descriptor (as registered).
4101	* @param pCmdHlp Pointer to command helper functions.
4102	* @param pVM Pointer to the current VM (if any).
4103	* @param paArgs Pointer to (readonly) array of arguments.
4104	* @param cArgs Number of arguments in the array.
4105	*/
4106	static DECLCALLBACK(int) dbgcCmdListNear(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4107	{
4108	dbgcVarSetGCFlat(pResult, 0);
4109	if (!cArgs)
4110	{
4111	/*
4112	* Current cs:eip symbol.
4113	*/
4114	DBGCVAR AddrVar;
4115	int rc = DBGCCmdHlpEval(pCmdHlp, &AddrVar, "%%(cs:eip)");
4116	if (RT_FAILURE(rc))
4117	return pCmdHlp->pfnVBoxError(pCmdHlp, rc, "%%(cs:eip)\n");
4118	return dbgcDoListNear(pCmdHlp, pVM, &AddrVar, pResult);
4119	}
4120
4121	/** @todo Fix the darn parser, it's resolving symbols specified as arguments before we get in here. */
4122	/*
4123	* Iterate arguments.
4124	*/
4125	for (unsigned iArg = 0; iArg < cArgs; iArg++)
4126	{
4127	int rc = dbgcDoListNear(pCmdHlp, pVM, &paArgs[iArg], pResult);
4128	if (RT_FAILURE(rc))
4129	return rc;
4130	}
4131
4132	NOREF(pCmd); NOREF(pResult);
4133	return VINF_SUCCESS;
4134	}
4135
4136
4137	/**
4138	* Matches the module patters against a module name.
4139	*
4140	* @returns true if matching, otherwise false.
4141	* @param pszName The module name.
4142	* @param paArgs The module pattern argument list.
4143	* @param cArgs Number of arguments.
4144	*/
4145	static bool dbgcCmdListModuleMatch(const char *pszName, PCDBGCVAR paArgs, unsigned cArgs)
4146	{
4147	for (uint32_t i = 0; i < cArgs; i++)
4148	if (RTStrSimplePatternMatch(paArgs[i].u.pszString, pszName))
4149	return true;
4150	return false;
4151	}
4152
4153
4154	/**
4155	* The 'ln' (listnear) command.
4156	*
4157	* @returns VBox status.
4158	* @param pCmd Pointer to the command descriptor (as registered).
4159	* @param pCmdHlp Pointer to command helper functions.
4160	* @param pVM Pointer to the current VM (if any).
4161	* @param paArgs Pointer to (readonly) array of arguments.
4162	* @param cArgs Number of arguments in the array.
4163	*/
4164	static DECLCALLBACK(int) dbgcCmdListModules(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4165	{
4166	bool const fMappings = pCmd->pszCmd[2] == 'o';
4167	PDBGC pDbgc = DBGC_CMDHLP2DBGC(pCmdHlp);
4168
4169	/*
4170	* Iterate the modules in the current address space and print info about
4171	* those matching the input.
4172	*/
4173	RTDBGAS hAs = DBGFR3AsResolveAndRetain(pVM, pDbgc->hDbgAs);
4174	uint32_t cMods = RTDbgAsModuleCount(hAs);
4175	for (uint32_t iMod = 0; iMod < cMods; iMod++)
4176	{
4177	RTDBGMOD hMod = RTDbgAsModuleByIndex(hAs, iMod);
4178	if (hMod != NIL_RTDBGMOD)
4179	{
4180	uint32_t const cSegs = RTDbgModSegmentCount(hMod);
4181	const char * const pszName = RTDbgModName(hMod);
4182	if ( cArgs == 0
4183	\|\| dbgcCmdListModuleMatch(pszName, paArgs, cArgs))
4184	{
4185	/*
4186	* Find the mapping with the lower address, preferring a full
4187	* image mapping, for the main line.
4188	*/
4189	RTDBGASMAPINFO aMappings[128];
4190	uint32_t cMappings = RT_ELEMENTS(aMappings);
4191	int rc = RTDbgAsModuleQueryMapByIndex(hAs, iMod, &aMappings[0], &cMappings, 0 /fFlags/);
4192	if (RT_SUCCESS(rc))
4193	{
4194	bool fFull = false;
4195	RTUINTPTR uMin = RTUINTPTR_MAX;
4196	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4197	if ( aMappings[iMap].Address < uMin
4198	&& ( !fFull
4199	\|\| aMappings[iMap].iSeg == NIL_RTDBGSEGIDX))
4200	uMin = aMappings[iMap].Address;
4201	DBGCCmdHlpPrintf(pCmdHlp, "%RGv %04x %s\n", (RTGCUINTPTR)uMin, cSegs, pszName);
4202
4203	if (fMappings)
4204	{
4205	/* sort by address first - not very efficient. */
4206	for (uint32_t i = 0; i + 1 < cMappings; i++)
4207	for (uint32_t j = i + 1; j < cMappings; j++)
4208	if (aMappings[j].Address < aMappings[i].Address)
4209	{
4210	RTDBGASMAPINFO Tmp = aMappings[j];
4211	aMappings[j] = aMappings[i];
4212	aMappings[i] = Tmp;
4213	}
4214
4215	/* print */
4216	for (uint32_t iMap = 0; iMap < cMappings; iMap++)
4217	if (aMappings[iMap].iSeg != NIL_RTDBGSEGIDX)
4218	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv #%02x %s\n",
4219	(RTGCUINTPTR)aMappings[iMap].Address,
4220	(RTGCUINTPTR)RTDbgModSegmentSize(hMod, aMappings[iMap].iSeg),
4221	aMappings[iMap].iSeg,
4222	/** @todo RTDbgModSegmentName(hMod, aMappings[iMap].iSeg)*/ "noname");
4223	else
4224	DBGCCmdHlpPrintf(pCmdHlp, " %RGv %RGv <everything>\n",
4225	(RTGCUINTPTR)aMappings[iMap].Address,
4226	(RTGCUINTPTR)RTDbgModImageSize(hMod));
4227	}
4228	}
4229	else
4230	DBGCCmdHlpPrintf(pCmdHlp, "%.*s %04x %s (rc=%Rrc)\n",
4231	sizeof(RTGCPTR) * 2, "???????????", cSegs, pszName, rc);
4232	/** @todo missing address space API for enumerating the mappings. */
4233	}
4234	RTDbgModRelease(hMod);
4235	}
4236	}
4237	RTDbgAsRelease(hAs);
4238
4239	NOREF(pCmd); NOREF(pResult);
4240	return VINF_SUCCESS;
4241	}

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Debugger/DBGCEmulateCodeView.cpp@ 35650

Download in other formats: